Silvio`s Corner

Transcription

Silvio`s Corner

®
GSE z/OS Expertforum Switzerland # 67, 25.-26.9.2007
®
Silvio’
Silvio’s Corner
z/News, Hints and Tips
Silvio Sasso
IBM Switzerland
ITS Service Delivery for z/OS
[email protected]
Zürich | 25. September 2007
Zürich | 26. Oktober 2004
Silvio Sasso's Corner, GSE z/OS
Expertforum CH #67, 25.-26.9.2007,
© 2007 IBM Corporation
1
Objectives
The objective of this news session is to provide you with up-to-date and last minute
technical information, hints and tips related to IBM mainframe hardware and software,
such as IBM system z9, zSeries, z/Architecture and z/OS.
This corner allows me to present you...
Hardware news: IBM hardware announcements, new features and options
ƒ
Software news: z/OS and Parallel Sysplex update
ƒ
Various resources containing additional documentation (e.g. product specific
information or other interesting Websites etc.)
ƒ
System programmer goodies, tools, hints and tips
ƒ
Useful technical news and flashes
ƒ
Recommended readings: new Redbooks and whitepapers etc.
ƒ
Tips for education, workshops and conferences
ƒ
and much more...
ƒ
Note: the information contained in this document has not been submitted to any formal IBM test and is distributed on an "as is" basis
without any warranty either expressed or implied. The use of this information or the implementation of any of the techniques or hints and
tips described is a customer responsibility and depends on the customer’s ability to evaluate and integrate them into the customer’s
operational environment. Customers attempting to adapt these techniques to their own environments do so at their own risk.
Expertforum CH #67, 25.-26.9.2007,
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Trademarks
The following are trademarks of the International Business Machines Corporation in the United States and/or other countries.
CICS*
DB2*
DB2 Universal Database
DirMaint
ESCON*
FICON*
GDPS*
HiperSockets
HyperSwap
IBM*
IBM eServer
IBM logo*
IMS
NetView*
OMEGAMON*
On Demand Business logo
Parallel Sysplex*
RACF*
S/390*
System z9
Tivoli*
TotalStorage*
VSE/ESA*
VTAM*
WebSphere*
z/Architecture*
z/OS*
z/VM*
z/VSE *
zSeries*
* Registered trademarks of IBM Corporation
The following are trademarks or registered trademarks of other companies.
Java and all Java-related trademarks and logos are trademarks of Sun Microsystems, Inc., in the United States and other countries
Linux is a trademark of Linus Torvalds in the United States and other countries..
UNIX is a registered trademark of The Open Group in the United States and other countries.
Microsoft is a registered trademark of Microsoft Corporation in the United States and other countries.
* All other products may be trademarks or registered trademarks of their respective companies.
Notes:
Performance is in Internal Throughput Rate (ITR) ratio based on measurements and projections using standard IBM benchmarks in a controlled environment. The actual throughput that any
user will experience will vary depending upon considerations such as the amount of multiprogramming in the user's job stream, the I/O configuration, the storage configuration, and the workload
processed. Therefore, no assurance can be given that an individual user will achieve throughput improvements equivalent to the performance ratios stated here.
IBM hardware products are manufactured from new parts, or new and serviceable used parts. Regardless, our warranty terms apply.
All customer examples cited or described in this presentation are presented as illustrations of the manner in which some customers have used IBM products and the results they may have
achieved. Actual environmental costs and performance characteristics will vary depending on individual customer configurations and conditions.
This publication was produced in the United States. IBM may not offer the products, services or features discussed in this document in other countries, and the information may be subject to
change without notice. Consult your local IBM business contact for information on the product or services available in your area.
All statements regarding IBM's future direction and intent are subject to change or withdrawal without notice, and represent goals and objectives only.
Information about non-IBM products is obtained from the manufacturers of those products or their published announcements. IBM has not tested those products and cannot confirm the
performance, compatibility, or any other claims related to non-IBM products. Questions on the capabilities of non-IBM products should be addressed to the suppliers of those products.
Prices subject to change without notice. Contact your IBM representative or Business Partner for the most current pricing in your geography.
Expertforum CH #67, 25.-26.9.2007,
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Agenda
General Information
The Mainframe Energy Efficiency Value Proposition
IBM Project Big Green
Banking on Mainframes
Gartner’s Platform Positioning - 1Q07
Hardware News
System z9 BC GA2 and z9 EC GA3 Enhancements
System z9 MCL Driver 67 Enhancements
LPAR Group Capacity Limit
System z9 Specialty Engine Exploitation
WLM and DS8000 DASD Subsystem Performance
Software News
z/OS Support Summary
z/OS Planning Information
Possible Benefits of staying current
Expertforum CH #67, 25.-26.9.2007,
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Agenda
Software News
Possible Risks of being unsupported
z/OS 1.9 Enhancements Follow-on
z/OS 1.9 Migration
APAR's of Interest (HIPER's and Red Alerts etc.)
Parallel Sysplex Update
CFCC Level 15 Enhancements
Coupling Facility Maintenance Mode
Hints and Tips, System Programmer "Goodies", Tools and Resources
IBM Prerequisite Website
RMF combined Postprocessor Reports
Useful WLM Tools
Why is it so important to keep the Number of Service Classes to a minimum?
Redbooks and Redpapers
Doc Juke Box
Expertforum CH #67, 25.-26.9.2007,
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Zürich | 25.September 2007
Expertforum CH #67, 25.-26.9.2007,
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•
Visualize this: a single, large, scaled-up system that shares communications resources,
memory and I/O facilities driven by a single (yet redundant) power subsystem
•
Now contrast this with dozens or hundreds of distributed, scaled-out systems each with its
own power supply, memory, CPU, I/O and network interface facilities
•
And remember this: these scale out distributed systems need external hubs, switches and
routers in order to communicate between each cooperative system within a distributed,
networked environment (these also add additional acquisition cost and require additional
power)
•
Which approach do you think is inherently more efficient?
•
If you chose the large, scaled-up system environment, you’re right!
•
By building a scaled-up environment that operates on the principle of sharing resources,
mainframe design trumps distributed computing architecture when it comes to energy
consumption
•
From an energy consumption perspective, mainframes have one of the most (if not the
most) compelling value propositions in the computing industry especially when compared
to distributed system-computing approaches
Expertforum CH #67, 25.-26.9.2007,
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The Mainframe Energy Efficiency Value Proposition…
•
•
This claim can be made based upon three criteria:
Mainframe (scale-up) system design advantages
Component efficiency
Level of sophistication of mainframe virtualization
Each of these aspects deserves closer scrutiny
Mainframe System Design Advantages
•
When it comes to energy efficiency, one can argue that a mainframe (scale-up) system’s
design is superior to that of a distributed system’s design for several reasons including
average utilization, internal networking and the sharing of components
•
First, scale-up designs waste less energy by virtue of being better utilized
•
Average utilization rates for mainframes run in the 75- to 90-percent range; whereas
utilization rates for distributed, scaled-out “tower” application and database servers
frequently run at less than 20 percent
•
What this means is that mainframes process workloads more efficiently and use less
power doing so than distributed, underutilized server environments
Expertforum CH #67, 25.-26.9.2007,
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Mainframe System Design Advantages…
•
The second major energy-saver with respect to scale-up systems is internal networking
•
By using internal networks to communicate between processors, the external, powerconsuming devices used in distributed systems architecture can be eliminated
•
What this means is that IT buyers need not waste money on loads of network interface
cards, hubs, switches and the like, nor do they have to power each of these devices
separately
•
Depending on the size of a given distributed systems environment, using a mainframe or
scaled-up environment can save hundreds of thousands of dollars annually in terms of
energy usage, equipment acquisition and maintenance
•
The third major energy saver is the design emphasis around sharing components such as
memory cache and I/O pipes
•
Instead of multiple components devoted to single machines (as in scale-out architecture),
components are heavily shared in a scale-up architecture
•
This sharing of resources results in less energy being devoted to powering underutilized
memory, disk and I/O than to fuel distributed computing environments
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Component Efficiency
•
In addition to architectural design efficiencies, various mainframe components also yield
additional energy consumption advantages
•
Most notably, mainframe power supplies are highly efficient in large part due to the way
they dissipate heat
•
Specialty processors and better memory use also contribute to power savings
•
A power supply converts AC current into DC current that drives a computer. The energy
issue with power supplies is that, while converting power from AC to DC, they waste
energy in the form of heat, which must be vented from the system
•
If the power supply isn’t designed for efficiency or if heat is poorly vented, energy is
wasted
•
And some distributed servers have highly inefficient power supplies that waste 30 to 40
percent of the energy that they should be using to power computers
•
Mainframe power supply efficiency, on the other hand, is greater than 80%
•
Specialty processors also provide energy consumption advantages over general purpose
processors found in distributed computing environments
Expertforum CH #67, 25.-26.9.2007,
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Component Efficiency…
•
For instance, IBM’s zAAP processor is a low-cost workload engine designed to reduce
software deployment, integration and tuning costs for specific enterprise applications (BI,
ERP, CRM, etc.)
•
IBM’s zIIP environment focuses on centralizing data from multiple sources on a mainframe
such that BI, CRM or ERP applications can use that data for enterprise reporting or to
derive the answers to business queries
•
Using these specialty engines, IBM mainframes are able to tune workloads that can be
handled more efficiently by specialty processors and the resulting efficiency in processing
enables enterprises to get more work done in less time using less power than if the work
were performed on more general purpose processors
•
Better use of memory also results in energy savings
•
IBM’s collaborative memory management assist helps extend the coordination of memory
and paging enabling memory to be used efficiently even by disparate operating
environments such as z/OS and Linux
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Component Efficiency…
•
Efficient and full use of memory means that less power is wasted in a mainframe memory
environment as compared with distributed systems environments where memory is
scattered all over the place - yet another advantage that works in favor of large, scaled-up
servers
•
Using these specialty engines, IBM mainframes are able to tune workloads that can be
handled more efficiently by specialty processors
•
The resulting efficiency in processing enables enterprises to get more work done in less
time using less power than if the work were performed on more general purpose
processors
•
Heightened efficiency through using fewer components and tuning systems to process
workloads are key approaches for engineering IBM mainframe energy efficiency
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Save the green Planet
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•
On May 10, 2007 IBM announced it is redirecting $1 billion per year across its businesses,
mobilizing the company’s resources to dramatically increase the level of energy efficiency
in IT
•
The plan includes new products and services for IBM and its clients to sharply reduce data
center energy consumption, transforming the world’s business and public technology
infrastructures into "green" data centers
•
The savings are substantial -- for an average 25,000 square foot data center, clients should
be able to achieve 42 percent energy savings
•
Based on the energy mix in the US, this savings equates to 7,439 tons of carbon emissions
saved per year
•
Called “Project Big Green,” IBM’s initiative targets corporate data centers where energy
constraints and costs can limit their ability to grow
•
The initiative includes a new global “green team” of more than 850 energy efficiency
architects from across IBM
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•
Today, according to analyst firm IDC, roughly 50 cents is spent on energy for every dollar
of computer hardware
•
This is expected to increase by 54 percent to 71 cents over the next four years 1)
•
“The data center energy crisis is inhibiting our clients’ business growth as they seek to
access computing power,” said Mike Daniels, senior vice president, IBM Global
Technology Services
–
Many data centers have now reached full capacity, limiting a firm’s ability to grow and make
necessary capital investments
•
Today we are providing clients the IBM action plan to make their data centers fully utilized
and energy efficient
•
IBM currently runs the world’s largest commercial technology infrastructure, with more
than eight million square feet of data centers in six continents
•
By using the same energy efficiency initiatives it is offering clients today, IBM expects to
double the computing capacity of its data centers within the next three years without
increasing power consumption or its carbon footprint 2)
1)
Source: IDC, Worldwide Server Power and Cooling Expense 2006–2010 Forecast, Doc #203598, September 2006
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•
Compared to doubling the size of its data centers by building out new space, IBM
expects this will help save more than five billion kilowatt hours of energy per year
Project Big Green Details
•
IBM is using its expertise and energy-smart technology innovations to outline a five-step
approach for clients that is designed to dramatically improve energy efficiency:
1)
DIAGNOSE: Evaluate existing facilities -- energy assessment, virtual 3-D power management
and thermal analytics
2)
BUILD: Plan, build or update to an energy efficient data center
3)
VIRTUALIZE: Virtualize IT infrastructures and special purpose processor
4)
MANAGE: Seize control with power management software
5)
COOL: Exploit liquid cooling solutions -- inside and out of the data center
2)
Based on greenhouse gas production, the size of a carbon footprint is determined by the amount of carbon dioxide that
comes from human activities
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1.) Diagnose
–
Clients struggle to obtain accurate and detailed information on the energy efficiency of their data
centers and what major opportunities exist for improvement
–
Data centers exhibit significant hotspots – regions of high power density – which result from a flawed
layout of server racks, unsound floor designs, and the undesired intermixing of hot and cold air
–
IBM can conduct an energy efficiency assessment for clients’ data centers that can reduce energy
costs by up to 40 percent
–
This service – the IBM Data Center Energy Efficiency Assessment – utilizes a new standard metric to
rate the energy efficiency of the data center, and presents a plan for clients to increase their
efficiency
–
Mobile Measurement Technology (MMT), a new technology from IBM Research, measures 3-D
temperature distributions within data centers
–
The new mobile measurement machine includes a position monitoring system with a network of up
to 100 sensors used to gather thermal data at a granular level, with unprecedented speed and
accuracy as it travels through the data center
–
MMT was implemented at Pacific Gas & Electric’s three data centers in California where it accurately
visualized hot spots, air leakage and other inefficiencies across their 40,000 square feet of data
center space in a few days, as opposed to a few weeks if surveyed by hand
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1.) Diagnose…
–
IBM Thermal Analysis for High Density Computing service product identifies and resolves existing
and potential heat-related issues that are likely to create outages in existing data centers, and
provides options for power savings and future expansion
–
IBM will use virtual worlds to explore virtual 3-D power management of data centers, resulting in more
efficient energy use
2.) Build
–
Based on IBM’s experience of building 30 million square feet of data center space for clients
worldwide, the Data Center Energy Efficiency Assessment service complements additional new
energy efficient service products announced on May 10, 2007, including:
•
The Energy Efficiency Self Assessment provides clients a free online view of their data center
energy efficiency
•
The IBM Scalable Modular Data Center, a pre-configured 500 or 1,000 square foot data center
solution with energy efficient technologies that can be implemented in 8-12 weeks and is 15
percent less expensive than traditional data center builds
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2.) Build…
–
The IBM Optimized Airflow Assessment for Cabling, which helps clients improve air flow under the
data center raised floor and reduce cabling costs, and
–
Specialized Facilities capabilities to design and build green buildings which help clients integrate all
building subsystems to operate in a safe, efficient and ecologically friendly environment leading to
significant energy savings
3.) Virtualize
–
Clients need to move to virtualized infrastructure and take advantage of emerging hybrid systems
that utilize special purpose processors to improve performance and reduce energy consumption
•
IBM leads in providing the industry’s most comprehensive virtualization technologies –
including mainframe, UNIX, x86, and storage systems – which allow clients to consolidate
work onto fewer computers, increasing utilization, which can significantly reduce energy
and maintenance bills and simplify their infrastructure
•
Today, many computer systems use 5 percent to 12 percent of their capacity
•
IBM’s mainframe, which includes the world’s most sophisticated virtualization
technologies, already allows clients to reach nearly 100 percent server utilization
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4.) Manage
–
Provisioning software can reduce 80 percent of power consumption on servers automatically by
putting them on standby mode when they are not needed
–
If this software was deployed in all the estimated U.S. data centers, the country could save 5.4
billion kilowatt hours per year, enough electricity to heat 370,000 homes for a winter
–
Tivoli management software will expand the IBM Cool Blue portfolio of energy efficient technology
with software that monitors power consumption, allows users to set power policies and tracks
energy usage and accurately charges back departments’ power consumption in a data center
•
–
As a result, every department can be held accountable and learn to create efficiencies by both
monitoring for current energy use to find opportunities for savings, and by allowing users to
save energy through minimizing consumption via server provisioning and de-provisioning
PowerExecutive software, part of the IBM Systems Director portfolio, will now be available across
all IBM systems and storage
•
Originally designed from IBM BladeCenter and System x, in November 2007 IBM will roll the
free energy management technology out across IBM System i, System p, System z and
System Storage
•
It is the only energy management software tool that can provide clients with a view of the
actual power used
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5.) Cool
–
Exploit liquid cooling solutions -- inside and out of the data center
–
IBM is announcing a patented “stored cooling” solution that dramatically increases the efficiency of
the largest single use of power in the data center – the end-to-end cooling system
–
The IBM Data Center Stored Cooling Solution service product, implemented at an IBM data center in
Quebec, achieved 45 percent savings and has already been named the “best new energy product” by
the American Society of Heating, Refrigeration, and Air Conditioning Engineers (ASHRAE)
–
IBM’s patented Rear Door Heat eXchanger “cooling doors” are now available across most IBM
Systems offerings
–
While requiring no additional fans or electricity, they reduce server heat output in data centers up to
60 percent by utilizing chilled water to dissipate heat generated by computer systems
–
IBM also plans to introduce a new set of liquid cooling technologies later this year developed by IBM
Research Labs
–
IBM will soon launch an open, Web-enabled clearinghouse for energy efficiency incentives
–
The Energy Efficiency Incentive Finder will be one central website for details about energy efficiency
incentives and programs that are available from local utility companies, governments, and other
participating agencies anywhere in the world
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IBM goes ahead: a practical Example
•
IBM has announced that in its World-wide Computing Centers it will consolidate 3’900
Servers on 30 System z Mainframes
•
In Conjunction with the World-wide Climate Debate IBM has now decided to carry out its
green Intensions
•
According to IBM, this Consolidation Process will reduce Energy Consumption by 80 Percent
•
Today, an IBM Computing Center almost consumes as much Energy as a small City
Note: the Savings achieved with this reduced Energy Consumption should also provide a Benefit for
Customers in Terms of Price Reduction
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Reducing Power and Space by Switching from Unix to z/OS
•
A large national retailer was having a problem with both the heat and space of its
incumbent systems
•
The retailer was managing 200 Sun 4800 4-way servers
•
The systems were measured to consume 608 kilowatts and generated 2,074,000 BTUs of heat
•
Based on its geographic location and cost of electricity and cooling, the systems cost
$30,000 per month to supply the electricity to run the systems and the air conditioning
necessary to cool them
•
Because of this large recurring cost, the retailer was looking at compute alternatives that
could save on this $360,000 annual bill, which was expected to go up, as a result of
skyrocketing energy costs
•
One of the alternatives they considered was putting their workloads on mainframe computers
Source: Mainframe Computing and Power in the Data Center, Robert Francis Group, February 16, 2007
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Reducing Power and Space by Switching from Unix to z/OS…
•
The retailer evaluated the IBM z9 54-way system
•
It was able to meet the computing requirements in the 200 Sun 4800 systems
•
This, considering that half the servers were idle as backup, and the remaining servers were
averaging about 20 percent CPU utilization
•
While a single z9 54-way system drew 18,300 watts, compared with 3040 watts for one Sun
4800, the single box was able to do the work of the 200 systems
•
Therefore, the comparable performance metrics for real workloads ending up being 608,000
watts for the total Sun systems, compared with 18,300 watts for the z9, or 3 percent of the
comparable power draw
•
The BTU comparison was 62,220 BTUs for z9, compared with 2,074,000 BTUs for the Sun
systems
•
The difference as it related to the monthly power bill at $.05 per KWH came to $905 versus
$30,165, for an annual electricity savings of $351,120 or a reduction of 97 percent
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•
In addition to the significant electricity cost reduction, the retailer also found a significant
space savings
•
The total space of the z9 system took one-tenth the floor space
•
RFG has found similar metrics when comparing mainframe space and power utilization to
other distributed systems
•
RFG believes mainframe computing platforms have many of the characteristics that will
ameliorate, if not eliminate, the current challenges data center managers face with power
and cooling
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•
First, mainframe power consumption and heat characteristics are, for many companies,
the most efficient servers in the data center
•
This is true in an absolute sense, where the energy per square foot is lower than any data
center system measured by our clients
•
More significantly, this is massively true in a relative sense, when comparing power used per
transaction
•
On a total workload throughput basis, mainframe system power consumption is almost
negligible when compared with distributed systems on a power per transaction basis
•
As power and cooling costs continue to rise, IT executives should reevaluate mainframe
computers total cost and overall value in reducing data center operations costs
•
For more detailed information, refer to the following documentation, which is provided as
part of Silvio’s Corner Doc Jukebox:
–
Mainframe Computing and Power in the Data Center (Robert Francis Group)
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IT Optimization means moving to a Data Center in a box ……
not rearranging a server farm
• Central point of management
• Higher resource utilization
• Lower cost of operations
• Less Servers
– Fewer SW Licenses
– Fewer resources to manage
– Less energy, cooling and space
• Fewer intrusion Points
– tighter Security
• Fewer points of Failure
– Greater Availability
We needed a solution that could provide high levels of availability around the clock, along with the flexibility to quickly and
cost-effectively deploy new services both internally and externally. IBM eServer zSeries fitted the bill perfectly on both
counts, enabling us to run multiple Linux virtual machines on a single, ultra-reliable hardware platform. Tim Simpson, IT
Support Manager, Dundee City Council
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Mainframe cost per unit of work goes down as workload increases
Cost per unit of work
Most TCO benchmarks
compare single applications
M
ai
nf
ra
m
The proper comparison is a
distributed data center versus a
mainframe, running high volume
mixed workloads!
Most businesses operate here, often
running thousands of applications
e
Distributed scale out
Data Center Workload
Expertforum CH #67, 25.-26.9.2007,
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Nexxar – a new Mainframe User in 2006
a Financial Services Company with 800 Employees
Business Need
Key Benefits of moving to z9
A architecture for
IT infrastructure to
provide very high
(24x7) availability
and the ability to
sustain significant
anticipated
business growth
An architecture that suits requirements for security, manageability,
reliability, availability, scalability, extensibility and flexibility
The ability to grow Nexxar ‘s growth by acquisition business while
staying within the same platform
Consolidation of more than 80 x86 servers onto an IBM System z9
Business Class (BC)
A 75% reduction of headcount required to maintain the operating
environment in comparison with the x86 systems previously on the
floor.
See also - http://www.redmonk.com/jgovernor/archives/002190.html
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Data Centers are getting hotter!!
Power and cooling spend may eventually exceed new server spending
Spending
(US$B)
$120
2000 – Raw processing
“horsepower” is the primary
goal, while the infrastructure
to support it is assumed
ready
Worldwide Server Market
Installed Base
(M Units)
50
45
New Server Spending
$100
40
Power and Cooling
35
$80
30
$60
20
$40
15
10
$20
5
$0
0
19
96
19
9
19 7
98
19
9
20 9
00
20
0
20 1
02
20
03
20
0
20 4
05
20
06
20
07
20
08
20
09
20
10
2006 – Raw processing
“horsepower” is a given, but
the infrastructure to support
deployment is a limiting
factor
25
Year
SOURCE: IDC, ‘The Impact of Power and Cooling on Data Center Infrastructure,’ Document #201722, May 2006"
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Energy Efficiency
RFG analyst case study: Retailer
consolidated 600 x86 servers onto
a single mainframe
Eliminated an entire floor of servers
Reduced administrative staff by 10
Cut power and cooling costs by 80%
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Additional Information
•
Project Big Green Announcement Press Release, May 10, 2007
–
•
Project Big Green - Big Blue goes green
–
•
http://www-03.ibm.com/systems/virtualization/view/071807.html
Project Big Green – Become more Energy efficient
–
•
http://www-03.ibm.com/press/us/en/pressrelease/21524.wss
http://www-03.ibm.com/systems/optimizeit/cost_efficiency/energy_efficiency/
Hitzewelle im Rechenzentrum
–
Neue Zürcher Zeitung, Forschung und Technik, Ausgabe vom 22.8.2007
•
How-to-Guide for implementing Energy efficient Data Centers *Note
•
Incentive Programs for Data Center Thermal Analysis *Note
•
CIO Guide to green Data Center *Note
•
Energy efficient Motivators Whitepaper *Note
•
The Impact of Power and Cooling on Data Center Infrastructure (IDC) *Note
•
Mainframe Computing and Power in the Data Center (Robert Francis Group) *Note
•
Using IBM System z to realize significant operational Cost Savings (Robert Francis Group) *Note
*Note: this document will be provided as part of Silvio‘s Corner Doc Jukebox
Expertforum CH #67, 25.-26.9.2007,
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Last, but not least…
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IBM builds Momentum in Banking with System z
Banking on Mainframes
•
The IBM mainframe has been the backbone of the
global banking industry for more than 40 years
•
It's an honor that isn't likely to end soon
•
Today's mainframes are helping banks transform
their operations and the value they deliver to
customers
•
Mainframes lie at the core of IT operations at every one of the world’s top 25
banks
•
What’s more, two out of every three business transactions for U.S. retail banks
run directly on mainframes
•
Mainframes certainly play an important role for IBM in the Financial Services
Sector
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Banking on Mainframes…
•
Recent industry reports from Gartner and IDC confirm that IBM System z was a
key factor in IBM earning the title of top server vendor in the Financial Services
industry last year
•
Now more than ever, IBM has its sights set on System z growth
•
The company hopes to do that by finding new ways to make the mainframe
essential to current IBM clients' operations and by attracting a new
generation of customers to the mainframe
•
One way IBM makes mainframe technology more valuable and accessible is
through integration with financing
•
Working capital is an issue for many businesses, and 25 percent of the
companies that finance with IBM are banks
Expertforum CH #67, 25.-26.9.2007,
36
•
Additionally, IDC recently reported that a three year server refresh strategy,
enabled by financing, could actually result in the most cost-effective IT
stategy since it reduces the total cost of ownership
•
With the breadth of IBM’s expertise in the area of finance — as well as with
the Services professionals to consult with clients on mainframe best
practices and deployments — the key to growth has become transforming
legacy applications for use on the modern mainframe
•
IBM will focus on bringing more applications to the mainframe than ever
before, while learning to scale the industry’s most-used applications to new
levels
•
IBM has embraced an entire ecosystem of previously untapped capabilities
for the mainframe to achieve this goal
Expertforum CH #67, 25.-26.9.2007,
37
•
As announced on June 21, IBM System z has joined over 25 software providers,
systems integrators and resellers on an initiative called Destination z
•
Destination z will build System z's ecosystem further, bringing new capability to
the mainframe
Expertforum CH #67, 25.-26.9.2007,
38
•
380 million bank accounts? Who you gonna call?
•
IBM has rarely issued public statements about performance benchmarks on
the mainframe platform
•
But recently, IBM and banking application vendor Financial Network Services
(FNS) joined to announce a performance result unlike any other
•
The two companies conducted a test designed to evaluate the mainframe’s
ability to scale to the needs of 380 million banking customers
•
The Bank of China turned to IBM to prove that System z was up to the task of
processing every one of the bank’s accounts simultaneously using the
industry standard TCS Core Banking (BANCS) application
•
The benchmark would serve as the world's largest core banking benchmark
in the history of computing
•
In fact, it would represent the largest scalability test of its kind ever
completed on the IBM mainframe
Expertforum CH #67, 25.-26.9.2007,
39
•
IBM and FNS experts accomplished the goal using a single System z9
mainframe system — delivering a record 9,445 business transactions per
second in real-time across a number of mixed workloads based on more than
380 million accounts with three billion transaction histories
•
This remarkable achievement did more than stun the FSS industry
•
It was a decisive factor in the creation of the IBM Banking Center of
Excellence (CoE)
•
The center is co-located at the Poughkeepsie Design Center for System z and
the Silicon Valley Lab High Performance On Demand Solution center
•
The CoE demonstrates IBM's leadership in transforming and re-engineering
financial institutions' back office processing systems
•
Technical experts with banking systems expertise collaborate with clients to
develop and test IBM solutions to their business challenges in a Proof of
Concept setting
•
The new center strengthens IBM’s reputation as the leading authority in reengineering and transforming banking back office processing systems
Expertforum CH #67, 25.-26.9.2007,
40
•
The CoE is staffed by technical and industry experts who combine their
extensive knowledge of core banking and payment business processes and
systems with equal knowledge of the IBM System z platform
•
CoE staffers also offer technical advice and assistance on transformation
projects which may include architecture and design workshops, proof-of
concept and prototyping projects, and benchmarking
•
Third-party Independent Software Vendors seeking to sell to financial
institutions can get support and services as well
•
The center can help elevate IBM to a trusted advisor status for better control
of the opportunities and higher odds of winning projects
•
The center should drive workloads toward System z in concert with other
platforms and products as well, since IBM will be working with ISVs to
optimize their offerings to an IBM System z infrastructure well suited for
financial institutions
Expertforum CH #67, 25.-26.9.2007,
41
Source: Gartner, Server Scorecard Evaluation Model version 3, 1Q07
Expertforum CH #67, 25.-26.9.2007,
42
PLATFORM
• SINGLE SYSTEM AVAILABILITY
• PLANNED DOWNTIME
• DISASTER TOLERANCE & RECOVERY
OPERATING SYSTEM
• FAILOVER CLUSTERING
• HIGH AVAILABILITY SERVICES
Expertforum CH #67, 25.-26.9.2007,
43
PLATFORM
• Virtual Machines & LPARS
• Mixed Workload Hosting
• Mixed Workload Management
OPERATING SYSTEM
• OS Workload Management
• OS Manageability
Expertforum CH #67, 25.-26.9.2007,
44
HARDWARE PROTECTION AND SECURITY
HARDWARE ELECTRICAL ISOLATION
Expertforum CH #67, 25.-26.9.2007,
45
Expertforum CH #67, 25.-26.9.2007,
46
Expertforum CH #67, 25.-26.9.2007,
47
Delivering powerful new technologies designed to address today’s
critical business needs
Delivering powerful new technologies designed
to address today’s critical business needs Future
direction*
Today’s
Capabilities
Simplifying
Extensionthe
of infrastructure through
capabilities*
improved
management, administration
and operations
Underpinned by further enhancements
in technology and economic value
Powerful servers for simplified infrastructures
IBM System
z925.-26.9.2007,
– The Enterprise Hub
Expertforum
CH #67,
48
Data Serving for the Enterprise
Centralized secure data serving for users and applications
• 40+ years heritage in corporate data
serving
Future
direction*
• Highly secure and robust
• Common view of data to all
• Centralized end-to-end management
Extension of
capabilities*
Today’s
• Highly scalable
Capabilities
• Low cost of ownership
Today’s Mainframe:
The simplicity of a single data server, the power of a common view of data
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
49
IBM System z9 BC GA2 and z9 EC GA3 Enhancements
General Availability May 11, 2007
Power Monitoring,
Power Planning Tool
LPAR Group
Capacity Limit
Future
Hardware Decimal
Floating Point
CFCC Level 15
HMC and SE
direction*
Enhanced Function
On/Off CoD
Enhancement
Extension of
capabilities*
TKE Workstation
LIC 5.1
System-Initiated CHPID
Today’s
Reconfiguration
Capabilities
and
Smart Card Reader
z9 BC
CBU Enhancement
I/O Availability
Enhancements
OSA Dynamic
LAN Idle
OSA-Express2 Network
Traffic Analyzer
z9 BC Single
Processor
Crypto Express2
OSA and FCP
Performance
Enhancements
OSA Layer 3
VMAC
QDIO Diagnostic
Synchronization
z9 BC 2 port
FICON Express4 SX
z/VM Integrated
System Management
OSA-Express2
Link Aggregation for
z/VM
Frame Bolt Down Kit
Features
Preview/SOD for XML
exploitation of zIIPs
and zAAPs
Note: Please refer to the latest PSP bucket for latest PTFs for new functions/features
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
50
Using System z9 Enhanced Driver Maintenance for updating
to GA2/GA3 Driver levels
•
Need to apply GA MCL(s) to establish Sync Points in order to use EDM to upgrade from
driver level 63 to 67
•
Future
All HMCs that have the CEC defined MUST be upgraded to Driver 67 (2.9.2 level) BEFORE
direction*
the EDM upgrade
-
•
By design, the HMC must be equal too or higher then the highest SE on the network
Extension of
Planning required for Systems with the following:
capabilities*
-
CFCC code for CF LPARs. Will require partition activate for CF LPAR(s)
-
OSA CHPID
types OSC, OSE, OSD and OSN will require config OFF/ON in order to activate new code
Capabilities
Today’s
Not needed if these types do not exist in the IOCDS
-
Crypto Express2 code load will require a Config OFF/ON in order to activate new code
Not needed if Crypto Express2 is not installed
•
Option to install new level of Driver code with a planned outage remains
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
51
IBM System z9 MCL Driver 67 Enhancements
•
Available from 11 May, 2007
•
Provides the BC GA2 / EC GA3 enhancements
-
The current Driver level is 63
•
Upgrade can be done non-disruptively if you plan carefully
•
Common to BC and EC machines:
-
-
Future
direction*
LPAR Group Capacity Limit (more on it later
in this Presentation)
Extension
of
Group of LPARs on one footprint need not becapabilities*
in the same parallel sysplex
Today’s
Requires z/OS Release 8
Capabilities
CFCC Level 15
Will be covered in Detail later in the Parallel Sysplex Topic of this Presentation
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
52
IBM System z9 MCL Driver 67 Enhancements…
•
Hardware Decimal Floating Point Facility
•
Provides a new z/Architecture® Hardware Decimal Floating Point facility providing 4, 8, and
16 byte data formats, an encoded decimal (base 10) representation for data, instructions for
performing decimal floating point computations, and an instruction which performs data
Future
conversions to and from the decimal floating point representation
direction*
•
Exclusive to System z9 EC and BC
-
•
Extension of
capabilities*
No emulation or simulation support is provided for earlier machines.
Requires Today’s
at a minimum:
Capabilities
-
z/OS or z/OS.e 1.6 with PTF UA26136
-
z/VM 5.2 for guest support
-
IBM High Level Assembler V1.4 or higher plus applicable service for PTF PK18170
•
Additional Information
•
http://www.research.ibm.com/journal/rd/511/duale.html
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
53
•
System-Initiated CHPID Reconfiguration
-
Adds function to the System z9 to signal each LPAR sharing a CHPID that is to be
configured physically Offline or Online from the HMC
New operating system function then configures the LPAR channel image
Designed to eliminate the requirement to enter an operator command manually for each
LPAR sharing the channel
Future
direction*
-
Designed to reduce operator effort requiredExtension
to configure
of the CHPID from each LPAR,
which can be substantial with up to 60 sharing
LPARs
capabilities*
-
May reduce
Today’sthe duration of a service action when an ESCON or FICON channel, and
OSA Capabilities
port or a coupling link must be taken physically offline
-
Exclusive to System z9 and applicable to channel types when configured in modes
that can be shared
-
Requires at a minimum:
z/OS or z/OS.e 1.6 with PTF for APAR OA16166
Messages: IOS288A and IOS289I report initiation and completion
Linux on System z9 – IBM is working with its distribution partners to provide support for this
function in future distributions or service updates
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
54
•
Multi-path IPL
-
Adds function to permit use of alternate paths to the IPL device if errors occur
during IPL.
-
Designed to help increase availability by allowing IPL to complete if possible
using alternate paths and to reduce the requirement for manual problem
determination when errors occur during IPL.
-
Extension
of in FC mode and
Exclusive to System z9 and applicable to FICON
channels
capabilities*
ESCON channels in CNC mode.
-
Today’s
Requires
at a minimum:
Capabilities
•
Future
direction*
z/OS or z/OS.e 1.6 with PTF for APAR 0A09050
Channel Subsystem Enhancements
-
Designed to increase availability of ESCON, FICON, OSA and ISC-3 Coupling Links to
facilitate recovery from errors – should they occur
-
Exclusive to System z9
-
Transparent to Operating System i.e. no service required
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
55
•
CHPID type FCP (QDIO) and OSA performance enhancements
•
QDIO Diagnostic Synchronisation
•
On/Off Capacity on Demand flexibility improved so may well provide more responsive Future
activation of temporary capacity
direction*
•
HMC Logon LDAP Authentication enhances security for the Hardware Management
Console (HMC)
Extension of
System Activity Display (SAD) Power Monitor capabilities*
•
-
Today’s
Additional
function for SAD on the HMC
Capabilities
-
Designed to display Watts and BTUs per hour of power consumption
-
Designed to display cooling air input temperature
-
Exclusive to z9
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
56
•
System Activity Display (SAD) Power Monitor
Future
direction*
Extension of
capabilities*
Today’s
Capabilities
• Example above: 10-IFL machine is using about 4.7kW
• The biggest z9 configuration (S54 with 54 processors) only takes 18 kW
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
57
• Requirement
- Balance
a defined capacity within a group of partitions on the same CEC
• Solution
Future
- Extend the “WLM Defined Capacity” mechanism to handle LPAR groups instead of a direction*
single LPAR
• Interface
Extension of
- The customer uses the hardware management capabilities*
console (HMC) to define a capacity group
and the corresponding MSU limit (DANU GA3)
Today’s
• Capacity Group…
Capabilities
-
Consists of multiple LPARs on the same CEC
-
LPARs must run at least z/OS 1.8
-
It is possible to define multiple groups on a CEC
-
A partition can only belong to one group
-
A group member can have a defined capacity also
-
A capacity group is independent of a sysplex and an LPAR cluster
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
58
LPAR Group Capacity Limit Example
Partition
Group Name
A
Group1
B
Group1
C
Group1
D
n/a
E
n/a
Group Limit
[MSU]
Weight
Target MSU consumption
based on Weight
Defined Capacity
(Softcap) [MSU]
70
93
50
67
30
40
n/a
100
n/a
120
n/a
50
n/a
n/a
200
Extension of
capabilities*
n/a
Future
80
direction*
30
Today’s
• Partitions A,Capabilities
B, and C belong to Group1 (D and E do not belong to any group)
• The limit for the group is 200 MSUs (Assuming the CEC capacity is >200 MSUs)
• Guaranteed minimum for each partition:
• Based on the weights the target consumptions for each partition within the group is:
-
Partition A: 93 MSU (max. 200 MSU by group limit)
-
Partition B: 67 MSU (max. 80 MSU by defined capacity)
-
Partition C: 40 MSU (max. 30 MSU by defined capacity)
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
59
LPAR Group Capacity Limit Considerations
• Similar to defined capacity a 4 hour bonus exists for the group after IPL
- Meaning
the group wide capping will start when the 4 hour rolling group average will reach the group
capacity limit
• New members joining a group
Future
- If
a new system is IPLed and joins a group it doesn’t have the history of the MSU consumption of the
direction*
complete group, therefore it can take up to 4 hours until all systems in the group have the same view
• During that time period the group limit can’t be guaranteed
Extension
ofpartition doesn’t have the complete
• The group might use more than the group limit because
the new
capabilities*
history. If that happens the other partitions will be reduced
to their capacity based on their weight in
the group
Today’s
• A partition can
be removed from a group and/or added to another group
Capabilities
- The
- All
changed partition has no knowledge about unused capacity of the new or old group
systems must again learn the new situation
• Works together with IRD Weight Management
- IRD
Weight Management may change the weight of partitions in a capacity group and thus changes the
target share of the partition in the capacity group
• Works together with IRD Vary CPU On/Off Management
- Both
functions should have no influence on each other
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
60
19
:0
19 3 (
:2 45
19 3 ( )
:4 49
20 3 ( )
:0 53
20 3 ( )
:2 57
20 3 ( )
:4 61
21 3 ( )
:0 65
21 3 ( )
:2 69
21 3 ( )
:4 73
22 3 ( )
:0 77
22 3 ( )
:2 81
22 3 ( )
:4 85
23 3 ( )
:0 89
23 3 ( )
: 9
23 23 3)
:4 (9
00 3 ( 7)
:0 10
00 3 ( 1)
:2 10
00 3 ( 5)
:4 10
01 3 ( 9)
:0 11
01 3 ( 3)
:2 11
01 3 ( 7)
:4 12
02 3 ( 1)
:0 12
02 3 ( 5)
:2 12
02 3 ( 9)
:4 13
03 3 ( 3)
:0 13
03 3 ( 7)
:2 14
03 3 ( 1)
:4 14
04 3 ( 5)
:0 14
04 3 ( 9)
:2 15
04 3 ( 3)
:4 15
05 3 ( 7)
:0 16
05 3 ( 1)
:2 16
05 3 ( 5)
:4 16
06 3 ( 9)
:0 17
06 3 ( 3)
:2 17
06 3 ( 7)
:4 18
07 3 ( 1)
:0 18
07 3 ( 5)
:2 18
07 3 ( 9)
:4 19
08 3 ( 3)
:0 19
08 3 ( 7)
:2 20
08 3 ( 1)
:4 20
09 3 ( 5)
:0 20
09 3 ( 9)
:2 21
09 3 ( 3)
:4 21
10 3 ( 7)
:0 22
10 3 ( 1)
:2 22
3 5)
(2
29
)
LPAR Group Capacity Limit…
• Capacity Distribution
Actual MSU values
IRD4
100
60
IRD3
IRD5
140
Future
direction*
120
Extension of
capabilities*
80
Today’s
Capabilities
40
20
0
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
61
:0
19 3 (
:2 4 5
19 3 ( )
:4 4 9
20 3 ( )
:0 5 3
20 3 ( )
:2 5 7
20 3 ( )
:4 6 1
21 3 ( )
:0 6 5
21 3 ( )
:2 6 9
21 3 ( )
:4 7 3
22 3 ( )
:0 7 7
22 3 ( )
:2 8 1
22 3 ( )
:4 8 5
23 3 ( )
:0 8 9
23 3 ( )
: 9
23 23 3)
: 4 (9
00 3 ( 7)
:0 10
00 3 ( 1)
:2 10
00 3 ( 5)
:4 10
01 3 ( 9)
:0 11
01 3 ( 3)
:2 11
01 3 ( 7)
:4 12
02 3 ( 1)
:0 12
02 3 ( 5)
:2 12
02 3 ( 9)
:4 13
03 3 ( 3)
:0 13
03 3 ( 7)
:2 14
03 3 ( 1)
:4 14
04 3 ( 5)
:0 14
04 3 ( 9)
:2 15
04 3 ( 3)
:4 15
05 3 ( 7)
:0 16
05 3 ( 1)
:2 16
05 3 ( 5)
:4 16
06 3 ( 9)
:0 17
06 3 ( 3)
:2 17
06 3 ( 7)
:4 18
07 3 ( 1)
:0 18
07 3 ( 5)
:2 18
07 3 ( 9)
:4 19
08 3 ( 3)
:0 19
08 3 ( 7)
:2 20
08 3 ( 1)
:4 20
09 3 ( 5)
:0 20
09 3 ( 9)
:2 21
09 3 ( 3)
:4 21
10 3 ( 7)
:0 22
10 3 ( 1)
:2 22
3 5)
(2
29
)
19
• 4 Hour Averages
60
50
40
4 Hour Averages
IRD4
IRD3
IRD5
90
80
Future
direction*
70
Extension of
capabilities*
Today’s
Capabilities
30
20
10
0
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
62
• Partitions with Defined Capacities
IPL bonus for IRD4 and IRD5 based
on their defined capacities is expired.
The partitions IRD4 and IRD5 are
capped
now to 5 MSU
200
Actual MSU values
IRD5
IRD4
IRD3
Future
direction*
180
160
3
140
Today’s
Capabilities
100
120
4
Extension of
capabilities*
IPL bonus of the group is expired.
Partition IRD3 is now capped too, but
can use around 40 MSU because IRD4
and IRD5 only use 5 MSU each
80
60
40
20
5
17
:1
17 2 (
:2 45
)
17 2 (
:3 47
)
17 2 (
:4 49
)
17 2 (
:5 51
)
2
18 (
:0 53
)
18 2 (
:1 55
)
18 2 (
:2 57
)
18 2 (
:3 59
)
18 2 (
:4 61
)
2
18 (
:5 63
2 )
19 (6
:0 5
)
2
19 (
:1 67
)
19 2 (
:2 69
)
19 2 (
:3 71
)
19 2 (
:4 73
)
19 2 (
:5 75
)
2
20 (
:0 77
)
2 0 3 (7
:1 9
)
20 2 (
:2 81
)
20 3 (
:3 83
)
20 2 (
:4 85
)
2
20 (
:5 87
)
21 3 (
:0 89
)
3
21 (
:1 91
)
21 3 (
:2 93
)
21 3 (
:3 95
)
3
21 (
: 97
21 43 )
: 5 (9
9
22 3 ( )
: 0 10
1)
3
22 (
: 1 10
3
22 3 ( )
: 2 10
5)
3
22 (
: 3 10
7
22 3 ( )
: 4 10
9
22 3 ( )
: 5 11
1)
3
23 (
: 0 11
3
23 3 ( )
: 1 11
5)
3
23 (
: 2 11
7
23 3 ( )
: 3 11
9
23 3 ( )
: 4 12
1
23 3 ( )
: 5 12
3
00 3 ( )
: 0 12
5)
3
00 (
: 1 12
3 7)
(1
29
)
0
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
63
IBM System z9 Specialty Engine Exploitation
Attractive Pricing for new Workloads
Helping Driving down the Cost of IT
• Specialty engines – addressing more new
workloads:
- New:
Future
direction*
IPSec, XML(SOD)*
- Linux®,
Java, Data-serving
Extension of
• Specialty engines – designed to offer financial
capabilities*
benefits now and in the future:
Today’s
- Technology
investment protection
Capabilities
- Lowering the cost of future growth with ‘extra capacity at
no extra cost’
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
64
zIIP Assisted IPSec
• An enhancement to the z/OS Communications Server that
allows the IPSec processing to take advantage of zIIPs
•This zIIP Assisted IPSec function moves most of the z/OS IPSec
processing from the general purpose processors to the zIIPs
Future
direction*
• In addition to performing the encryption processing, the zIIP will also
handle cryptographic validation of message integrity, and IPSec header
processing
Extension of
capabilities*
• Specifically, the z/OS Communication Server (z/OS CS) is designed to
interact Today’s
with z/OS Workload Manager to have all of its IPSec enclave
Service Capabilities
Request Block (SRB) work made eligible to run on the zIIP
•This capability is available since August 2007 for z/OS 1.8 via PTFs,
and native on z/OS V1.9 when available
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
65
What is IPSec?
• IPSec (IP security) is a suite of protocols for securing Internet Protocol (IP)
communications by authenticating and/or encrypting each IP packet in a data stream
• IPSec also includes protocols for cryptographic key establishment
• IPSec helps enable secure tunnels between two IP entities - Virtual Private Network
• Helps provide end-to-end network encryption
• Why is it important?
• Some encryption technologies are application-specific (applied in appl. or IP layer)
-
SSL, Open SSH, AT-TLS encrypt applications with sensitive data
Applications (IP packets) with sensitive data are encrypted
• IPSec is designed to encrypt specific applications
Extension of
capabilities*
• OR IPSec can encrypt all traffic over an IP connection:
-
Server, client, printer, disk, remote
data center, to branch office... to
any IP node that is IPSec compliant
Applications with sensitive data are encrypted
All traffic over the IP connection is encrypted
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
66
IPSec helps provide end-to-end network encryption
A compelling option for protecting sensitive data on the mainframe
• End-to-end network encryption is becoming more pervasive due to regulatory and
enterprise security policies
• End-to-end network encryption is also becoming a requirement for companies that
outsource some part of their network and want to have greater control of access to
confidential data
Server,
Network
Device
z/OS
IPSec
(z/OS, UNIX®, Linux, etc.)
Network
Device
Unencrypted
Unencrypted
ATM, POS,
Printer, Laptop,
Network device
Encryption in network devices
Server,
(z/OS, UNIX, Linux, etc.)
z/OS
IPSec
Network
Network
Device
Device
End-to-end encryption
Expertforum CH #67, 25.-26.9.2007,
IPSec
ATM, POS,
Printer, Laptop,
Network device
Any platform supporting the IPSec
standard protocol either natively or
with additional software
67
What IPSec workload is eligible for zIIP?
•
This zIIP Assisted IPSec function designed to move most of the IPSec
processing from the general purpose processors to the zIIPs
•
z/OS CS TCP/IP recognizes packets that are IPSec and routes a portion of them
to an independent enclave SRB – this workload is eligible for the zIIP
1)
Inbound operation (not initiated by z/OS), example: server to z/OS
•
•
All inbound IPSec processing is dispatched to enclave SRB and
eligible for zIIP
In addition, all subsequent outbound IPSec responses from z/OS
are dispatched to enclave SRB
IPSec
Server
Server
-
2)
z/OS zIIP
z/OS zIIP
All encryption/decryption processing, cryptographic validation of
message integrity, and IPSec header processing sent to zIIP
Outbound operation (initiated by z/OS), example: z/OS to printer
•
•
•
Operation starts out in TCBs and therefore not eligible for zIIP
BUT ... any inbound response/acknowledgement
sends workload to SRB
All subsequent outbound IPSec responses from
z/OS are executed in SRB
zIIP
zIIP z/OS
zIIP z/OS
IBM System
z925.-26.9.2007,
Expertforum
CH #67,
z/OS
IPSec
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68
Example 1- Estimated Impact of zIIP assisted IPSec on
Inbound Bulk Data Transfer Workload**
** Under IBM lab test conditions example shows capacity required for TCP/IP for FTP portion only. For illustrative purposes only, your results
will vary. Applying IPSec encryption/ decryption may lower overall I/O throughput for bulk transfers regardless if executed on CP or zIIP. See
“Capacity Planning for zIIP-Assisted IPSec” white paper for more detail
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Outbound Bulk Data Transfer Workload**
** Under IBM lab test conditions example shows capacity required for TCP/IP for FTP portion only. For illustrative purposes only, your results
will vary. Applying IPSec encryption/ decryption may lower overall I/O throughput for bulk transfers regardless if executed on CP or zIIP. See
“Capacity Planning for zIIP-Assisted IPSec” white paper for more detail
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interactive Workload**
** Under IBM lab test conditions example shows capacity required for TCP/IP for interactive portion only.
For illustrative purposes only, your results will vary.
See “Capacity Planning for zIIP-Assisted IPSec” white paper for more detail
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How is z/OS CS enabled for zIIP?
• The z/OS Communication Server (z/OS CS) plans to interact with z/OS Workload
Manager to have all of its enclave Service Request Block (SRB) work directed to zIIP
-A
single configuration statement within the TCP/IP profile triggers z/OS CS to request z/OS
to direct this IPSec Enclave SRB processing to available zIIPs.
GLOBALCONFIG
ZIIP IPSECURITY (= eligible work is directed to zIIP)
GLOBALCONFIG
ZIIP NOIPSECURITY (default)
• Please note
- WLM
will have default = IIPHONORPRIOIRITY = YES
If
the amount of workload for zIIP exceeds the capacity of the zIIP, then zIIP workload will flow to the general
purpose processors and zIIP workload will have the same priority as is associated with that independent
enclave SRB
- If
you have other zIIP workloads (DB2 DRDA®)
IPSec
tends to have longer running units of work
Set
IPSec workloads to lower importance and lower execution velocity than that of DRDA (adjust the WLM
default service class from SYSOTHER)
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How do I estimate IPSec eligible Workloads?
•
The code for this capability is planned to be available in August 2007 with z/OS
1.8 and PTFs. Materials for workload sizing and capacity planning for this
capability are planned to be available April 2007
•
Three methods for projecting zIIP-Assisted IPSec sizing are:
1)
IPSec Traffic Model Method: This method projects zIIP effectiveness based on several
modeling variables. IBM will work with you to gather the inputs to be fed into the model
-
A tool (called CP3KIPSec) will be supplied, which will observe traffic patterns and system behavior,
and will collect data to be fed into the model
-
If you are already running IPSec, IBM can drive the model directly using the information collected
by the tool
-
If you are not yet running IPSec, IBM will need some additional information from you (see “IPSec
Modeling Questionaire” in the CP3KIPSec users guide) before IBM can fully construct the model
2)
PROJECTCPU Method: very accurate and very simple, but you have to be on z/OS 1.8 with the
enabling PTFs AND you need to be running your representative IPSec workload already on z/OS
3)
Projection method based upon current TCP/IP SRB-mode CPU Consumption: This method
can be used if you are running on a z/OS older than 1.8 AND you are already running your
representative IPSec workload
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Resources
• What are the pre-requisites for zIIP assisted IPSec?
–
z/OS V1.8 Communications Server PTF (APAR PK40178)
–
z/OS 1.8 PTF (APAR OW20045)
–
System z9 with zIIPs
–
z/OS CS = GLOBALCONFIG ZIIP IPSECURITY
• z/OS Communications Server page
–
ibm.com/software/network/commserver/zos/security/
• zIIP page
–
ibm.com/systems/z/ziip/
• Redbooks – z/OS Network Security
–
www.redbooks.ibm.com/redbooks/pdfs/sg247342.pdf
• White paper “Capacity Planning for zIIP-Assisted IPSec”
–
ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP100988
–
ibm.com/support/docview.wss?rs=852&uid=swg27009459
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Statement of Direction*
•
z/OS XML System Services enabled for zAAP and zIIP (Announcement 18.4.2007)
- At a future date, IBM intends to deliver the following:
IBM is intending to enable z/OS XML to take advantage of zAAPs
IBM is intending to enable z/OS XML to fully take advantage of zIIPs
IBM intends to extend and expand on the use of z/OS XML System Services (enabled for zAAP specialty
processors) as the basis for future enhancements:
o IBM intends to enhance the XML Toolkit for z/OS so that eligible workloads may exploit the z/OS XML
component
o IBM intends to add validating parsing to the z/OS XML component
* All statements regarding IBM future direction and intent are subject to change or withdrawal without notice, and represents goals and objectives only.
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Why enable z/OS XML to zAAP and zIIP?*
•
Did we run out of new engine names?
- The zAAP is the System z Application Assist Processor designed to help implement new
application technologies on System z – Java was the first exploiter
- The zIIP is the System z9 Integrated Information Processor designed to help integrate data
and transaction processing across the enterprise – DB2 V8 was the first exploiter
- The self-describing nature of XML lends itself to both application and information processing
environments
•
z/OS XML System Services enabled for zAAP and zIIP means that you can have
the advantages of XML processing on z/OS with TCO benefits of either the zIIP
or the zAAP processor, regardless of the invocation environment
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Enabling z/OS XML to take Advantage of zAAPs*
•
Did we run out of new engine names?
- Middleware and applications requesting z/OS XML System Services will have this z/OS XML
System Services parsing eligible to execute on the zAAP
- Specifically, all z/OS XML System Services parsing executing in TCB mode will be eligible
for the zAAP
o
Example: DB2 9 SQL/XML processing via local connection
- DB2 9 utilizes z/OS XML System Services for a portion of its SQL/ XML
o
Example: DB2 9 SQL/XML processing via local connection - executing in TCB mode
Applications (queries) running locally on z/OS
When DB2 9 inserts or updates XML data, the data has to be parsed and therefore DB2 invokes z/OS XML System
Services (and zAAP, when present)
Utilities
When XML data is loaded into tables, then the XML data needs to be parsed and therefore DB2 9 invokes z/OS XML System
Services (and zAAP, when present)
How much DB2 9 work is zAAP eligible will depend on amount of XML data being processed
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Process for redirecting z/OS XML System Services processing
to zAAP*
Standard CP
zAAP Processor
z/OS Dispatcher
Dispatch task on zAAP processor
Application
z/OS XML parse operation
z/OS XML System Services
Switch to zAAP
z/OS Dispatcher
Suspend application task on z/OS
standard CP
z/OS Dispatcher
Dispatch application task on z/OS
standard CP
Application
z/OS XML System Parser Code
Executing on a zAAP
z/OS XML
Switch to Standard Processor
z/OS Dispatcher
Suspend task on zAAP processor
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Enabling z/OS XML to fully take advantage of zIIPs*
•
With regard to DB2 9 today, z/OS XML processing may be partially directed
to zIIPs when utilized as part of a distributed DB2 request via DRDA
•
The future enhancement will make eligible the full amount of the z/OS XML
System Services parsing to zIIPs when it is utilized as part of any worload
running in enclave SRB mode (like DRDA)
- Specifically, all z/OS XML System Services parsing that is executed in enclave SRB mode
from zIIP-eligible enclaves will be redirected to run on the zIIP
o
Query processing - As part of DRDA request DB2 9 will be executing in SRB mode (Stored procedures
execute in TCB mode)
o
When XML data is inserted or updated it has to be parsed and therefore invokes z/OS XML System Services
(and zIIP, when present)
How much DB2 9 workload is eligible for the zIIP will depend on amount for XML data being processed
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Example: z/OS XML and DB2 9 DRDA and zIIP*
Today : DB2 9, SQL/XML,
no zIIP
CP
CP
Future*: DB2 9, SQL/XML, zIIP, and z/OS
XML enhancement
Today: DB2 9, SQL/XML, with zIIP
zIIP
CP
zIIP
z/OS XML DRDA
z/OSXML DRDA
SQL/XML DRDA
Application
TCP/IP
SQL/XML DRDA
SQL/XML DRDA
z/OS XML DRDA
z/OS XML
SQL/XML DRDA
SQL/XML DRDA
z/OS XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
(2) SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
SQL/XML DRDA
DB2/Batch
DB2/Batch
SQL/XML DRDA
DB2/Batch
SQL/XML DRDA
(3)
1) For illustrative purposes only. Single application only. Actual workload redirects may vary
2) DB2 9 for z/OS retains some XML processing (example: XML validation) and executes on CP
3) All z/OS XML System Services processing eligible for zIIP
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z/OS XML System Services to be exploited more*
•
As part of a comprehensive plan, IBM intends to extend and expand on the use
z/OS XML System Services (enabled for zAAP specialty processors) as the
basis for future enhancements:
o
IBM intends to enhance the XML Toolkit for z/OS so that eligible parsing operations may exploit the z/OS
XML System Services
o
This helps extend zAAP exploitation to the XML Toolkit for z/OS
IBM intends to add validating parsing to the z/OS XML System Services
This extends zAAP exploitation for XML validation as well
XML
validating
parsing
z/OS XML
System
Services
z/OS XML
Toolkit
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Resources
• Announcement Letter
• FAQ
• z/OS XML System Services Site
–
ibm.com/servers/eserver/zseries/zos/xml/
• DB2 Version 9 for z/OS
–
ibm.com/software/data/db2/zos/
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WLM and IBM DS8000 DASD Subsystem Performance
WLM, HyperPAV and DS8000 Performance
• WLM provides “I/O Priority” on each I/O based on Customer
provided Service Class
• WLM I/O Priority is used to Prioritize I/Os over Ficon Channel by
IOS
• Important if Backups run over into OLTP workload
• Important if Batch overlaps OLTP workloads
• Typically found in 24x7 multiple batch window accounts
• WLM + HyperPavs + DS8K performance can help reduce ‘multiple
copies of data created for performance reasons
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Expertforum CH #67, 25.-26.9.2007,
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z/OS Planning Information
z/OS Planned Roadmap
Architectural Level Set
* All statements regarding IBM's plans, directions, and intent are subject to change or withdrawal without notice. Any reliance on these Statements of General Direction is at
the relying party's sole risk and will not create liability or obligation for IBM.
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• z/OS Support for newer hardware platforms
- Price / Performance improvements
New SW pricing metrics, generation-to-generation SW savings possible (technology dividend), specialty
engine upgradeability
- Enhanced functions
Multiple Indirect Data Addressing Words (MIDAW), STP function planned*, JES2 NJE over TCP/IP
Scalability
Up to 60 LPARs, 32-way z/OS image, multiple channel subsystems, support for larger sequential data
sets, more concurrent ENQS
- Improved System availability and reliability
Concurrent upgrades and service, higher design redundancy and internal recovery
• Increased productivity
- Reduction in skills required
Health Checker for z/OS, OMEGAMON z/OS Management Console, HMC usability improvements, z/OS
Network Security Configuration Assistant, SMP/E automated Internet delivery of maintenance
- Technology is a key lever in business transformation
- zAAP – enabler for SOA
- zIIP – enabler for enterprise data management
- Security features
PKI Certificate Authority, Encryption Facility, compression/ encryption to tape (planned)*, IPSec, Application
Transparent TLS, Vanguard
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• z/OS 1.4 and 1.5 supported up through March 2007 (z/OS 1.6 supported up through
September 2007)
• Risks of running on unsupported releases and older technology
–
Limitation of new hardware that will operate and be supported
–
–
Processors, disk, tape …
Higher risk for IBM and ISVs to provide support
Only the latest releases are included in z/OS testing and recommended service updates
Newly found APARs/PTFs not rolled back to older/unsupported releases
More complicated migrations requiring longer time & more resources
Limited SW Migration/Coexistence/Fallback support available
• To avoid this, order z/OS 1.7 and 1.8 and make migration plans
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•
The following information on the Enhancements which will be provided by z/OS 1.9 is a
Follow-on to the information already presented at the 66th GSE z/OS Expert Forum on
March 27, 2007
•
For the information on z/OS 1.9 presented at the 66th GSE z/OS Expert Forum on
March 27, 2007, refer to the following URL:
•
http://www.thebrainhouse.ch/gse/doku/66_GSE/GSE66_Silvio_Sassos_Corner.pdf
•
In the following, a Focus will be given to selected, specific Enhancements
•
For detailed Information on the z/OS 1.9 Enhancements by Component refer to the
Documentation provided on the z/OS Web Site
•
•
http://www-03.ibm.com/servers/eserver/zseries/zos/overview/zosnew.html
For z/OS 1.9 Migration and Coexistence Information, refer to z/OS Migration, GA22-7499
•
In addition, refer to the following z/OS 1.9 Migration Doc’s provided as part of Silvio’s
Corner Doc Jukebox
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z/OS 1.9 SMF Performance and Scalability Enhancements
•
Overview of current Situation
•
z/OS images are getting larger and faster
–
More CPs, more real storage, more jobs run
•
SMF data set recording has not kept pace well
•
SMF recording limitations can cause data to be lost when:
–
I/O to active dataset is held up
–
All MAN datasets full (i.e. dump required)
–
Across MAN dataset “switch” processing
o
•
Heavy recording can overrun buffers while processing switch
SMF Dump Program must read every record to dump required records
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z/OS 1.9 SMF Performance and Scalability Enhancements
•
Overview of current Situation
•
z/OS images are getting larger and faster
–
More CPs, more real storage, more jobs run
•
SMF data set recording has not kept pace well
•
SMF recording limitations can cause data to be lost when:
–
I/O to active dataset is held up
–
All MAN datasets full (i.e. dump required)
–
Across MAN dataset “switch” processing
o
•
Heavy recording can overrun buffers while processing switch
SMF Dump Program must read every record to dump required records
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z/OS 1.9 SMF Performance and Scalability Enhancements…
•
Overview of current SMF Data Flow
SMF Address Space
Ctrl Info
Ctrl Info
Buffer
Record
Record
Record
Buffer
Record
Ctrl Info
Record
Ctrl Info
Buffer
Buffer
Program
Program requests to write a SMF
record
Locates appropriate buffer in SMF
A.S. to write the record
When ready to write, writes full
buffers to the SMF dataset
Note: Each buffer is numbered to
correspond to a particular record
in the SMF dataset
Ctrl Info
Ctrl Info
Buffer
Buffer
SYS1.MANx
Ctrl Info
Ctrl Info
Buffer
Buffer
Ctrl Info
Buffer
Ctrl Info
Ctrl Info
Ctrl Info
Buffer
Buffer
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Buffer
92
•
Solution
•
SMF will be enhanced to record to System Logger Log Streams
–
Data buffered in multiple data spaces (1 per log stream), increasing buffering capacity
–
Data written to log streams by multiple tasks (1 per log stream), increasing write rate
–
Allow data to be partitioned to log streams as it is created
o
•
•
Records can be recorded to multiple log streams
Create new dump program to read log streams
Benefit
•
System Logger captures data faster than MAN datasets
•
No I/O during switch processing to cause data overrun
•
SMF Dump program only reads data in specified log stream(s) (not all data at once)
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•
SMF Data Flow using Log Streams
Ctl Inf
Ctl Inf
Buffer
Buffer
Ctl Inf
DS1 Description
Buffer
DS2 Description
Record
Program
Ctl Inf
Buffer
Ctl Inf
Buffer
Buffer
Buffer
Buffer
…
Dataspace 1
Ctl Inf
Buffer
Ctl Inf
Ctl Inf
Buffer
Buffer
Ctl Inf
Ctl Inf
Ctl Inf
Buffer
Buffer
Buffer
Dataspace 2
Ctl Inf
Ctl Inf
Buffer
Buffer
Writer
Task
Ctl Inf
Ctl Inf
Ctl Inf
Buffer
Buffer
Buffer
Writer
Task
Logstream
Offload Dataset
Buffer
Ctl Inf
Ctl Inf
Program requests to write a SMF
record
SMF locates correct dataspace
Locates appropriate buffer to write
the record
If full, buffer passed to task to be
written to logstream
Ctl Inf
Buffer
Ctl Inf
Buffer
Ctl Inf
Buffer
Ctl Inf
DS3 Description
DSn Description
Ctl Inf
Buffer
Ctl Inf
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Logstream
Offload Dataset
94
•
Implementation and Usage
•
Define new logstreams in system logger
–
•
See “Setting up a Sysplex” for documentation
Defining new keywords in SMFPRMxx parmlib:
LSNAME(IFASMF.q1.q2,TYPE(xx:yy))
DEFAULTLSNAME(IFASMF.q1.q2)
RECORDING(DATASET|LOGSTREAM)
o
SETSMF RECORDING can be used to toggle recording settings (for fallback, for example)
•
Create new JCL to use IFASMFDL with new logstreams
•
Update processes to use data from log streams, if necessary
o
•
Ex. Automate periodic “Switch SMF” commands to drive new SMF Dump program
Activate parmlib changes via IPL or SET SMF=xx command
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•
•
Implementation and Usage
•
Can be called by Any function recording SMF data, no change to SMF callers
•
New/Changed External Output
–
New messages: IFA7xx messages instead of IEE360 etc.
–
Notable messages:
o
IFA710I – keywords accepted, recording to log stream
o
IFA718E – Logstream error requiring operator intervention to restart recording or
fall back to dataset recording
Usage and Invocation Examples
•
Write data to a DASDONLY logstream, simply replacing SMF MANx datasets
–
Use DEFAULTLSNAME(IFASMF.xxx) or LSNAME(IFASMF.xxx,TYPE(0:255)) to specify log stream
–
Run new SMF Dump Program to archive data
–
Simplest approach to using logstreams
–
Better performance using logstream versus SMF data sets
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•
Usage and Invocation Examples
•
A more sophisticated approach:
–
Write data to a logs tream on a ‘task oriented’ basis, for example:
o
Record Types (30,70:72,99) to one log stream (eg. IFASMF.PERF.DATA)
o
Record Types 30,80:81,83 to another log stream (eg. IFASMF.AUDIT.DATA)
o
Record DB2 data (Type 101) to a third stream (eg. IFASMF.DB2.DATA)
o
And use the DEFAULTLSNAME keyword to record all other record types
o
Run new SMF Dump Program to dump performance data OR audit data, without
reading other data
o
Tune log stream parameters for retention via logger interfaces
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•
Usage and Invocation
•
The SMF Dump Program for log streams allows the partitioning of output data
based on date, time, SMF id (SID)
•
Example SYSIN for IFASMFDL:
//DUMPMULT JOB MSGLEVEL=(1,1),MSGCLASS=A
//**************************************************************
//* Function: Dump and Print SMF records from a Logstream
//**************************************************************
//DUMPMAN EXEC PGM=IFASMFDL
//OUTDD1
DD DSN=SYS1.SMFDATA.REC30.SYSA(+1),DISP=(NEW,PASS,DELETE),
//
UNIT=3390,VOL=SER=D72CT3,SPACE=(CYL,(5,1),RLSE),
//
DCB=(LRECL=32760,RECFM=VBS,BLKSIZE=4096)
//OUTDD2
DD DSN=SYS1.SMFDATA.REC30.SYSB(+1),DISP=(NEW,PASS,DELETE),
//
UNIT=3390,VOL=SER=D72CT3,SPACE=(CYL,(5,1),RLSE),
//
DCB=(LRECL=32760,RECFM=VBS,BLKSIZE=4096)
//SYSPRINT DD SYSOUT=A
//DUMPOUT DD DUMMY
//SYSIN
DD *
LSNAME(IFASMF.MULTSYS.STREAM1)
OUTDD(OUTDD1,TYPE(30),START(0000),END(2400),SID(SYSA))
OUTDD(OUTDD2,TYPE(30),START(0000),END(2400),SID(SYSB))
DATE(2007024,2007024)
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•
Prerequisites and Dependencies
•
Hardware
–
•
None
Software
–
SMF data sets (MANx) can still be used
–
End user data view is still maintained
o
–
Record data from IFASMFDL should be indistinguishable from data from IFASMFDP
Possible exposure of vendor code that uses “live” SMF data (i.e. programs that read MAN
datasets rather than using output from SMF Dump program)
o
Check with vendors that use the SMF data sets in this way
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•
Migration and Coexistence Considerations
•
SMF MAN datasets can still be defined in SMFPRMxx
•
Recording can work to logstream or dataset, but not both!
–
•
A robust exploitation of new function may require business process updates!
–
•
SETSMF RECORDING command can toggle environment for new exploitation or for fallback,
but buffered data may be lost if it could not be written
e.g, will Billing department find required data in same datasets?
Coexistence:
–
Logstreams can be single system (DASDONLY) or CF-based
–
When CF-based, be sure each system has a unique SMF “SID”
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z/OS 1.9 Migration
z/OS 1.9 Migration Information
•
Carefully plan your Migration to z/OS 1.9
•
Ensure to install the required Compatibility Maintenance on your current z/OS Releases
•
For the detailed different Requirements refer to the z/OS 1.9 Migration Guide
–
•
z/OS 1.9 Migration Guide, SCxx-1224
In Addition, refer to the following z/OS 1.9 Migration Documents provided at
the August 2007 SHARE Conference in San Diego by Marna Walle:
–
Migrating to zOS V1R9 Part 1: Get Ready
–
Migrating to zOS V1R9 Part 2: Get Set
–
Migrating to zOS V1R9 Part 3: Go
This Documentations will be provided on
the GSE z/OS Expertforum CH Homepage
for Download as Part of Silvio‘s Corner Doc
Jukebox
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APAR's of Interest
APAR's and Red Alerts
• OA17070 New Function - RMF CF Reporting Enhancements
• OA18452 SRM 2094 z9
• OA18948 XCF…
• OA19931 Orphaned Storage in SP245 X'10000' Bytes obtained by IRAPAASC
• OA19783 XCF…
• OA19962 VLF Cache for Catalogs is not purged
• OA20125 Provide timely Rescheduling of internal XES Locking SRBs
• OA20353 (Hiper) Unplanned GDPS HyperSwap fails with GEO562I HYPERSWAP SWAP UCBS FAILED IN HYPERSWAP
• OA20524 (Hiper) IEE704I Reply not outstanding for WTOR on a System that just joined a Sysplex - Ghost WTOR
• OA20730 XCF…
• OA20887 Batch Job browsing Operlog Logstream data loops due to Logger doing many Media manager read I/O's
• OA20915 F CATALOG,ECSHR(STATUS) does not correctly update on all LPARs
• OA21295 IXC306I Contains bad remote Sysname due to IPL Timings
• OA21516 (Hiper) IEA231A, Consoles with incorrect Names, ABEND077 when a Systems joins an existing Sysplex
• OA21517 (Hiper) LATCH#2 Hang SYS.BPX.A000.FSLIT.FILESYS.LSN BPXTXFIX Looping ZFS PFS Termination
• OA21567 (Hiper) BPXP006E Hang OMVS is initializing the File System Mount Resync Refreshcache
• OA21632 (Hiper) ABEND073 RSN=0 during Rebuild of a Signalling List Structure
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APAR's of Interest
APAR's and Red Alerts...
• OA21650 I/O Errors on primary Sysplex Couple Dataset. XCF is waiting for another System in the Sysplex
• OA21896 (Hiper) Wait after Issuance of an IXLCONN request to serialized Structure (z/OS 1.6+)
• OA21924 High CPU Consumption in Console Address Space for the Task that handles the System Console
• OA21934 Copying a PDSE on a Sysplex using FASTREPLICATION results in an empty PDSE. Copy completes with RC 00
• OA22058 (Hiper) SQA Overlay during Recovery for I/O Error in alternate SYSSTAT Operation
• OA22383 After Start Pendings on a broken Device SYSTEMA holds switch ENQ Systems resource indefinately
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APAR Information Sources
Reminder: a good Source for APAR and ++HOLD Information
•
A useful Source for APAR and ++HOLD Information is available on the z/OS
Internet Web Site:
•
•
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/Shelves/ZDOCAPAR
This Web Site provides cumulative APAR and ++HOLD Information up to the
current Level
•
It is maintained and updated at least every 2 Weeks
•
At the Time of writing, it consists of 2 manuals available online:
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Coupling Facility Control Code Level 15
CFCC Level 15 Enhancements
•
Exclusive to IBM System z
•
Provided with MCL Driver 67
•
Designed to provide a basis for future CF enhancements (which will require z/OS 1.9)
Future
z/OS 1.6 with OA17055 for function and OA17070 for RMF support
direction*
•
•
•
Multitasking enhancements to provide an increase in the number of supported CF tasks,
from 48 to 112
Extension of
capabilities*
In addition, IBM will enhance System-Managed
Coupling Facility (CF) Structure
DuplexingToday’s
with streamlined CF-to-CF synchronization protocols
-
Capabilities
This is
expected to result in improved response time for duplexed CF requests that can take
advantage of this enhancement
-
This may help reduce the overhead of CF Duplexing, and may help make duplexing a more
viable alternative for use in providing high availability for CF structure data
-
This support requires CFCC Level 15, which is available on System z9 servers
-
This enhancement will be made generally available by 1Q2008, on z/OS V1.6 through V1.9,
delivered in the service stream
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Coupling Facility Control Code Level 15
CFCC Level 15 Enhancements…
•
When migrating to CFLEVEL 15 from earlier CFLEVELs, customers will observe significant
growth in the size of certain CF structures as a result of these multitasking enhancements
•
If the structures are not appropriately re-sized to allow for this growth, customers will
observe CF structures, allocated at a particular size, will contain significantly fewer
usable
Future
entries, data elements, and other structure objects than they did at lower CFLEVELs
direction*
•
Customers installing CFLEVEL 15 must properly plan for this structure size growth
•
Sysplex-wide problems or outages may result from
an unexpected
reduction in the number
Extension
of
of usable structure objects in a CF structure capabilities*
•
Today’s
In extreme
cases structures previously usable with a given structure size may not even be
Capabilities
able to be
allocated in a CFLEVEL 15 CF with the same structure size
•
Use the CFSIZER website (http://www.ibm.com/servers/eserver/zseries/cfsizer/) to
recalculate the size of their CF structures in a CFLEVEL 15 coupling facility
•
Make the corresponding structure size updates to their Coupling Facility Resource
Management (CFRM) policies
•
Activate the updated CFRM policy for active use in the sysplex
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CF Maintenance Mode
XCF Simplification for CF Maintenance
•
With z/OS 1.9, a new CF Maintenance mode will be provided to prevent Usage of the CF
for Structure Allocation and an Improvement to the Process of moving CF Structures out
of Coupling Facilities in Preparation for Maintenance
•
z/OS 1.9 will provide a new SETXCF Command that allows a Coupling Facility to be
placed into and taken out of “Maintenance Mode”
•
•
When a coupling facility is in Maintenance mode it is ineligible for CF Structure allocation purposes
•
All CF Structure allocation processes will modify their CF selection processing accordingly
This Enhancement allows to eliminate some of the Complexity of managing the Coupling
Facilities in Preparation for a Maintenance or Upgrade Action
•
CFRM Policy updates to remove the CF or maintaining multiple CFRM policies, can be avoided
•
Configuring CF links offline/online can also be avoided
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CF Maintenance Mode
XCF Simplification for CF Maintenance…
•
•
This Enhancement allows to eliminate some of the Complexity of managing the Coupling
Facilities in Preparation for a Maintenance or Upgrade Action
•
It will view a CF that is in Maintenance mode as being ineligible for structure allocation purposes
•
It will also view a CF in Maintenance mode as an undesirable location so that it will serially
relocate structures out of CFs that are in Maintenance mode as part of its normal processing
Typical Maintenance Procedures
•
Invoke SETXCF START,MAINTMODE for a particular coupling facility to place the coupling
facility into Maintenance mode
•
Invoke SETXCF START,REALLOCATE to evaluate and process the CF structures
Reallocate will move the CF Structures out of the CF that has been placed into
Maintenance mode
Reallocate will not move any CF Structures into the CF that has been placed into
Maintenance mode
•
The CF that has been placed into Maintenance mode is now empty and ready for upgrade action
or maintenance
•
CF Structure allocation will also avoid placing structures in a CF that is in Maintenance mode
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CF Maintenance Mode
•
Typical Maintenance Procedures
•
Invoke SETXCF STOP,MAINTMODE for a particular coupling facility to turn off the
Maintenance mode indication for the coupling facility
•
Invoke SETXCF START,REALLOCATE to evaluate and process the CF Structures
•
•
Reallocate will move the CF Structures as appropriate into the CF that has been taken
out of Maintenance mode
The CF that has been taken out of Maintenance mode is now eligible for structure allocation
•
Use the SETXCF Start or Stop command to place or remove a specific coupling facility or a list
of coupling facilities into Maintenance mode
SETXCF START,MAINTMODE,CFNAME=(cfname,<cfname>....)
SETXCF STOP,MAINTMODE,CFNAME=(cfname,<cfname>....)
•
Message IXC369I is issued with the result of the SETXCF command processing for each CF
•
Message IXC569I is issued as hard copy message only to the syslog whenever a coupling facility
has been placed into or taken out of Maintenance Mode
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CF Maintenance Mode
•
•
Existing messages for structure allocation evaluation are updated to support a new reason for
not using a CF that is in Maintenance mode
•
DISPLAY XCF,CF has been enhanced to report information on CFs that are in Maintenance mode
•
IXC574I, IXC463I, IXL015I
DISPLAY XCF,CF Messages IXC361I and IXC362I have been enhanced to indicate when
a CF is in Maintenance mode
Dependencies
•
Hardware Requirements
•
IBM System z
Software Requirements
See Coexistence and Migration Consideration on next Foil
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CF Maintenance Mode
•
Coexistence and Migration Considerations
•
A compatibility PTF is available to enable lower level systems (z/OS 1.8 down to z/OS 1.6) to
understand that a CF in Maintenance mode is not eligible for CF Structure allocation
•
A CF may only be placed into and out of Maintenance mode by a system running z/OS V1R9
•
z/OS systems running 1.8 down to 1.6 with this support installed can recognize that a CF is not
eligible for CF Structure allocation and the following have been modified with a new message
insert indicating “ALLOCATION NOT PERMITTED’
•
APAR OA17685
IXC361I, IXC362I, IXC367I, IXL015I, IXC574I, IXC463I
Fall back Considerations
•
Systems running pre-z/OS V1R9 with or without the compatibility support will not be able to
place a CF into or out of maintenance mode
•
A sysplex that is falling back to a configuration without any z/OS V1R9 systems may leave a CF
stuck in Maintenance mode
•
Before any fallback actions are taken, ensure that all the CFs are taken out of Maintenance mode
•
Note: CF Maintenance mode indication will be cleared by a sysplex-wide IPL
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CF Maintenance Mode
•
Examples of new and enhanced Messages for CF Maintenance Mode
•
IXL015I issued when a program attempted to connect or to connect for rebuild purposes to a CF
structure will contain a new message line to indicate when the structure allocation failed because
the CF was in maintenance mode:
IXL014I IXLCONN REQUEST FOR STRUCTURE DUPALLOWED01
WAS SUCCESSFUL. JOBNAME: XEADUPDD ASID: 002E
CONNECTOR NAME: IXCLO00B0001 CFNAME: CF2
IXL015I STRUCTURE ALLOCATION INFORMATION FOR
STRUCTURE DUPALLOWED01, CONNECTOR NAME IXCLO00B0001
CFNAME
ALLOCATION STATUS/FAILURE REASON
---------------------------------------CF1
ALLOCATION NOT PERMITTED
COUPLING FACILITY IS IN MAINTENANCE MODE
CF2
STRUCTURE ALLOCATED 9C007800
TESTCF
PREFERRED CF ALREADY SELECTED 9C007800
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CF Maintenance Mode
•
Examples of new and enhanced Messages for CF Maintenance Mode…
•
Message IXC361I issued in response to a DISPLAY XCF,CF command will contain a new status
line to indicate when a CF is in maintenance mode:
D XCF,CF
IXC361I 12.39.55 DISPLAY XCF
CFNAME
COUPLING FACILITY
SITE
CF1
SIMDEV.IBM.EN.ND0100000000
N/A
PARTITION: 00
CPCID: 00
MAINTENANCE MODE
CF2
N/A
PARTITION: 00
CPCID: 00
TESTCF
SIMDEV.IBM.EN.CF0100000000
N/A
PARTITION: 00
CPCID: 00
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CF Maintenance Mode
•
Examples of new and enhanced Messages for CF Maintenance Mode…
•
Message IXC362I issued in response to a CF-specific DISPLAY XCF,CF command will contain a
new status line to indicate when the CF is in maintenance mode:
D XCF,CF,CFNAME=CF1
IXC362I 12.40.08 DISPLAY XCF
CFNAME: CF1
COUPLING FACILITY
:
PARTITION: 00
CPCID: 00
SITE
:
POLICY DUMP SPACE SIZE:
ACTUAL DUMP SPACE SIZE:
STORAGE INCREMENT SIZE:
N/A
1024 K
1024 K
256 K
MAINTENANCE MODE
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Should be checked for every Processor
(Change of Speed) and Memory Upgrade
(DDR1 to DDR2) and Adapter Card
https://www-912.ibm.com/e_dir/eserverprereq.nsf
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IBM Prerequisite Website: All Features
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•
eConfig – Shows in Power 5 Mes Configurations
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Web Sites of Interest
•
Facts and Features
http://www-03.ibm.com/systems/p/hardware/factsfeatures.html
•
Systems Performance Report
http://www-03.ibm.com/systems/p/hardware/system_perf.html
•
Single Order Validation Application
http://www-03.ibm.com/servers/sova/index.jsp
•
Capacity on Demand Code Page
http://www-912.ibm.com/pod/pod
•
Capacity on Demand Home Page
http://www-03.ibm.com/systems/p/cod/
•
IBM Prerequisite Web Site
https://www-912.ibm.com/e_dir/eserverprereq.nsf
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RMF Performance Reporting
RMF combined Postprocessor Reports
•
RMF Postprocessor Default Report Dataset Allocation
•
For every RMF SMF Type 7x Interval Record found on the Input Dataset
specified by the MFPINPUT DD-Statement, ERBRMFPP dynamically allocates
a Sysout Dataset with a DD-Statement of MFRnnnnn or MFXnnnnn
IEF237I JES2 ALLOCATED TO MFR00001
……….
•
When reporting long Time Periods, e.g. one Week or one Month,
depending on the Complexity of the Configuration, this may result
in a large Number of MFRnnnnn DD-Statements being allocated
•
This may also exceed the maximum Size of the TIOT Table of the reporting (Batch)
Address Space
•
In Addition, because the MFRnnnnn Datasets are not specified in JCL, it’s difficult
to write them to permanent DASD Datasets rather than to Spool
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RMF Performance Reporting
RMF combined Postprocessor Reports…
•
In Addition to the Default Report Output Allocation described previously,
RMF allows to combine all RMF SMF Type 7x Interval Records found in the
MFPINPUT Dataset to be combined in only one Outpout Report
•
This can be be done by specifying the following DD-Statement in the RMF
Postprocessor Report JCL:
•
For RMF Postprocessor Reports requested via the REPORTS(…) Control
Statement add the following DD-Statement to your JCL:
//PPRTPS
DD SYSOUT=*
or
//PPRTPS
//
•
DD DSN=USERID.MYREPORT.DATA,DISP(,CATLG),
//PPRPTS combines all
MFRnnnnn Datasets in
1 Output Report
UNIT=SYSDA,SPACE=(CYL(20,10))
For RMF Postprocessor Reports requested via the SYSRPTS(…) Control
Statement add the following DD-Statement to your JCL:
//PPXRTPS
DD SYSOUT=*
or
//PPXRTPS
//
DD DSN=USERID.MYREPORT.DATA,DISP(,CATLG),
//PPXRPTS combines
all MFXnnnnn Datasets
in 1 Output Report
UNIT=SYSDA,SPACE=(CYL(20,10))
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Workload Manager Tools
Useful WLM Tools
•
WLM Service Definition Formatter
•
The Service Definition Formatter is a small tool that assists you in
displaying your WLM service definition
•
To use the tool you only have to download the WLM service definition
to your workstation and load it into the spreadsheet
•
Then you can use the various worksheets to display parts of your
service definition to get a better overview of your workload
management definitions
•
The tool is not a service definition editor
•
All modifications to the WLM service definition must be entered
through the WLM Administrative Application
•
To install the tool download SetUpSvDef.exe (Version 3.4, 306KB)
to your workstation and execute the installation program
•
The tool consists of one Microsoft Excel spreadsheet
•
In addition there’s a short description, ReadMe.pdf, in the installation path of the tool
http://www-03.ibm.com/servers/eserver/zseries/zos/wlm/tools/sdformatter.html
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Useful WLM Tools…
•
Service Definition Editor
•
The WLM Service Definition Editor is a workstation-based tool that
helps you maintain your WLM service definition
•
It integrates a FTP download/upload mechanism that allows you to
transfer WLM service definitions in ISPF format between host and
workstation
•
The WLM Service Definition Editor provides different views to
analyze, edit, and print your workload management definitions
•
To install the tool download IBM-WSE-1.1.0-win32.exe (Version 1.1.0, 41.8 MB) to
your workstation and execute the installation program
•
The tool can then be launched via the Windows® Start menu (All Programs > IBM
Workload Management > IBM WLM Service Definition Editor)
•
Installation of the a version will copy across the preference settings and FTP definitions
from an already installed older version
•
If you have modified the batch job templates, refer to the user's guide for any manual
migration actions that may be required
http://www-03.ibm.com/servers/eserver/zseries/zos/wlm/tools/sdeditor.html
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Useful WLM Tools…
•
WLM Work Queue Viewer
•
WLM Work Queue Viewer is a small ISPF based tool that may assist you in displaying
the application environments that are currently being used on your z/OS system
•
This can be helpful for using Websphere Application Servers when you specify minimum
and maximum limits for the number of server address spaces that should be started
•
You can view the number of started and active server address spaces, and the service
classes being used as work queues for the application environments with the help of
the REXX command list
•
The tool can be used for any kind of application environment from Websphere
•
DB2 or user specified types and applications
•
To install the tool download wlmque.zip (version 1.8.009, 97KB) to
your workstation
•
Unzip the file and follow the installation instructions in README.TXT
•
The tool has been written on a z/OS 1.8 system and should run
from z/OS 1.6 and above
http://www-03.ibm.com/servers/eserver/zseries/zos/wlm/tools/wlmque.html
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Useful WLM Tools…
•
WLM Work Queue Viewer Overview Display
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Useful WLM Tools…
•
WLM Work Queue Viewer Detail Display
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Workload Manager Service Policy
WLM Service Policy Performance Considerations
•
Why is it so important to keep the keep the Number of Service Classes to
a Minimum?
•
Is this to reduce WLM overhead?
•
There are a couple of reasons why it helps to have no more than 25 to 35
active service class periods at any point in time:
•
WLM responsiveness
•
At each 10 second policy interval, WLM selects the service class period in the
most need of help and takes one policy action on its behalf
•
The more active service class periods you have that need assistance, the more
10-second cycles it will take WLM to take all the needed policy actions for these
service classes
•
This could reduce WLM's responsiveness in managing to goals
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Workload Manager Service Policy
WLM Service Policy Performance Considerations
•
Reasons why it helps to have no more than 25 to 35 active service class periods
at any point in time…
•
Better WLM decisions
•
As part of its decision-making, WLM makes projections for how work will behave
when resource changes are made
•
The accuracy of these projections depends on the quality of the history data
gathered for a service class
•
The more like work that can be put into a single service class, the more statistically
valid will be its history data, and the better will be WLM's decisions
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Recommended Readings
Redbooks and Redpapers
z/OS V1R8 Implementation, SG24-7265-00
Implementing REXX Support in SDSF, SG24-7419-00
z/OS V1R8 DFSMS Technical Update, SG24-7435-00
Migrating to the IBM System Storage DS8000, SG24-7432-00
Introduction to the new Mainframe: z/VM Basics, SG24-7316-00
Introduction to the new Mainframe: zVSE Basics, SG24-7436-00
ABCs of z/OS System Programming Volume 10, SG24-6990-02
Getting Started with SCLM - A practical Guide to SCLM and SCLM Advanced Edition, SG24-7392-00
HFS to zFS Migration Tool, REDP-4328-00
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Silvio’s Corner Doc Jukebox
The following Documentations will also be supplied as Part of the GSE
z/OS Expert Forum CH Handouts CD:
z/OS Hot Topics Newsletter #17 (August 2007), GA22-7501-13
System z Parallel Sysplex Recovery, GA22-7286-01
Data Replication Consistency Groups Trifold, PRS2637
When the Mainframe is really the lowest Cost Platform
z/OS Best Practices: Large Standalone Dump Handling V2, TD103286
z/OS Performance Enhancements for large Real Environments, FLASH10598
z/OS 1.8 Coupling Facility Resource Management Performance Enhancements, WP101036
z/OS 1.8 Console Considerations, TD103889
Migrating to zOS V1R9 Part 1 - Get Ready, SHARE, S2870, August 2007
Migrating to zOS V1R9 Part 2- Get Set, SHARE, S2871, August 2007
Migrating to zOS V1R9 Part 3 – Go, SHARE, S2872, August 2007
Enhanced PSP Tool, FLASH10585
WSC Experiences with the zIIP Processor and IPSec, PRS2745
All Documentations listed on this Foil will be provided on the GSE z/OS Expertforum CH Homepage
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Silvio’s Corner Doc Jukebox
The following Documentations will also be supplied as Part of the GSE
z/OS Expert Forum CH Handouts CD:
How-to-Guide for implementing Energy efficient Data Centers
Incentive Programs for Data Center Thermal Analysis
CIO Guide to green Data Center
Project Big Green: Server Consolidation in IBM Computing Centers (Press Release)
Energy efficient Motivators Whitepaper
The Impact of Power and Cooling on Data Center Infrastructure (IDC) *Note
Mainframe Computing and Power in the Data Center (Robert Francis Group) *Note
Using IBM System z to realize significant operational Cost Savings (Robert Francis Group) *Note
All Documentations listed on this Foil will be provided on the GSE z/OS Expertforum CH Homepage
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Last, but not least…
How to get the Handouts for this Session
•
The Handouts for this Session and the Documentations listed in the “Doc Jukebox”
will be provided on the GSE z/OS Expertforum CH Homepage
http://www.thebrainhouse.ch/gse/
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The End...
Zürich, 27. März 2007
Expertforum CH
#67, 25.-26.9.2007,
139
GSE
GSE
z/OS
z/OS
Expertforum
Expertforum
Switzerland
Switzerland
# 64,
# 67,
9.-10.5.2006
25.-26.9.2007
And now relax, slow down and…
…enjoy an evening with your z-friends…
Zürich, 9. Mai 2006
Expertforum CH
#67, 25.-26.9.2007,
140

Silvio`s Corner

Transcription

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