Magnetic storage technologies

Roadmap Discussion
Magnetic Storage Technologies
Digital appetite – the background
Gadget lovers are so hungry for digital data
many are carrying the equivalent of 10 trucks
full of paper in "weight".
If digital hoarding habits continue on this scale,
people could be carrying around a "digitally obese"
20 gigabytes by next year.
"Britain has become a nation of information hoarders
with a ferocious appetite for data,"
Martin Larsson, general manager of Toshiba's European storage device division.
(9 December 2004 - http://news.bbc.co.uk/1/hi/technology/4079417.stm)
Magnetic Roadmap
December 2004 Rob Hardeman
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Sectors considered
Hard Disc Drives
Media, Heads, Integration & systems
Tape Drives
Media, Heads, Integration & systems
Flexible media
Other storage, security applications
Magnetic Roadmap
December 2004 Rob Hardeman
Page 3
Hard disc drives – nearly 50 years
driven by technology
Historical
progress
faster than
Moore’s law –
several
technology
revolutions
e.g GMR
heads.
Magnetic Roadmap
December 2004 Rob Hardeman
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But the market is changing
Processes and
content are
becoming
Digital
Mobile
Virtual
Personal
Carly Fiorina,
HP
Magnetic Roadmap
December 2004 Rob Hardeman
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A new driving force
Consumer Electronics Market*
HGST
12%
Cornice
4%
GS
MagicStor
HGST
18%
4%
Samsung
4%
Toshiba
21%
Cornice
2%
GS
MagicStor
3%
Samsung
4%
Toshiba
18%
FUJ
2%
STX
22%
FUJ
1%
WDC
8%
MXO
23%
Q4 FY04
8.6M Units
Magnetic Roadmap
December 2004 Rob Hardeman
Growth
STX
25%
WDC
15%
MXO
14%
Y/Y = 96%
Q1 FY05
11.6M Units
Q/Q = 34%
* Includes 3.5-, 2.5-, 1.8- and 1-inch drives
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1” drives and below…
iPod
Mini
4GB
Seagate
ST1 CF
5GB card
Magnetic Roadmap
December 2004 Rob Hardeman
BUSAN, Korea - September 7, 2004 : Samsung
Electronics unveiled the first-ever mobile phone
(model: SPH-V5400) with an internal hard disc drive
Page 7
Technology alone is no longer enough, but..
Magnetic Roadmap
December 2004 Rob Hardeman
Page 8
Western Digital view (Feb 2004)
Magnetic Roadmap
December 2004 Rob Hardeman
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Challenges for disc drives
Seamless transition to Perpendicular recording (2005-6)
Write poles, Channels, SUL media
Overcoming conflict between media thermal stability and writability
>2.4 T ?, Coercivity for bit-cell size, ‘Superparamagnetism’
Head-disc interface
Tribology and surface engineering
Low cost patterned media
Non-lithographic solutions
Drive mechanical performance
Shock tolerance, vibration tolerance,
COST, COST, COST
Demands of Consumer Electronics applications
A personal opinion from Rob Hardeman December 2004
Magnetic Roadmap
December 2004 Rob Hardeman
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Tape drives
In the consumer, audio, video, broadcasting arena the end is
probably in sight for all forms of magnetic tape e.g. cassette,
VHS, open-reel:
Mastering – hard discs
Video recording – hard discs & DVD-R.
Audio recording – hard discs, flash, CD-R, DVD-R..
The growth of broadband communications, Video on
Demand, podcasting etc will only accelerate this trend.
Specialist applications will remain but the volume days are
virtually over.
In the data world however, things are very different…
“Information Lifecycle management” - ILM
Magnetic Roadmap
December 2004 Rob Hardeman
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INSIC view
Reported by Dr Richard Dee – StorageTek
Magnetic Roadmap
December 2004 Rob Hardeman
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Tape roadmap – StorageTek
Magnetic Roadmap
December 2004 Rob Hardeman
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Tape Drives - LTO
Update – this is
now available
Magnetic Roadmap
December 2004 Rob Hardeman
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Tape challenges
Maintaining the volumetric and cost advantages
Precision mechanical requirements for high-speed transport
- tape backings, servos, interchangeability
Tribology & wear of head-media interface
- compatibility for removable media
Performance, cost and yield of multi-channel heads
A personal opinion from Rob Hardeman December 2004
Magnetic Roadmap
December 2004 Rob Hardeman
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Other magnetic media
1. Magnetic stripes
Established standards for credit cards, tickets.
Market will be eroded by chip&pin, RFID etc but still high volume
Unlikely, however, to see significant development..
2. Floppy disc
Becoming a curiosity – insufficient capacity
Drives not being fitted in many PC’s
Supplanted by email, USB memory, CD-RW
A personal opinion from Rob Hardeman December 2004
Magnetic Roadmap
December 2004 Rob Hardeman
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Information Storage in the UK
http://www.linkisd.org.uk/StorageGuide.pdf (June 2004)
Magnetic Roadmap
December 2004 Rob Hardeman
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Summary
Magnetic disc drives face many challenges other than
technical – it is now a commodity & consumer marketplace.
Technical challenges are focussed on recovering the slope
of the areal density curve which has slowed to where nearplateaux are appearing.
Disc drives (magnetic and optical) look to be dominating at
the expense of tape.
Other media retain significant niches, but these are reducing
with time.
Magnetic Roadmap
December 2004 Rob Hardeman
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INSIC material
Backup
INSIC: TARGETS OF OPPORTUNITY
Increased storage density of magnetic disk, magnetic tape
and optical technologies by 10X to 100X over current
technologies, including:
magnetic read/write heads
magnetic and optical storage media
head/media interface
signal processing
servo and tracking
optical sources and components
Magnetic Roadmap
December 2004 Rob Hardeman
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INSIC continued
Advanced manufacturing tools and processes for storage devices
Storage software to improve management and accessibility of stored
information
Proof of concept of alternative storage technologies with performance
potential beyond conventional approaches, including:
holographic storage
near-field optical storage
probe storage
solid-state nonvolatile memory devices
Storage system architecture to enable broader and easier application
of storage devices to network and non-computer environments
New storage-intensive application demonstrations through
partnerships with end-users and companion technology providers
Magnetic Roadmap
December 2004 Rob Hardeman
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INSIC Tape Roadmap
Year
2001
2006
2011
Unit
Tape Cartridge Capacity
Tape Thickness
Approx. Length of Tape
Linear Tape Track Density
Linear Tape Bit Density
Tape Speed
Data Rate/Channel (Raw)
Data Rate/Channels (User*)
0.1
8.8
600
900
125
4
2.5
1.7
1
5.3
1000
2700
250
6.5
8
6
10
3.8
1400
9800
500
10
25
18
TB
mm
m
Tb/in
Kb/in
m/sec
MB/sec
MB/sec
Disk Drive Single Platter Capacity
Disk Drive Data Rate
Capacity Ratio (Tape/Disk)
Data Rate Ratio (Disk/Tape)
0.03
74
3.3
30
0.3
227
3.3
29
3
855
3.3
34
TB
MB/sec
Magnetic Roadmap
December 2004 Rob Hardeman
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NSIC limit:
1 Tbit/sq in
Magnetic Roadmap
December 2004 Rob Hardeman
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ILM: No single product can make it
happen
Storage Mgmt SW
High
Enterprise disk
Online (ms)
Aging 30 days
Virtual tape
Client server disk
Online (ms)
Aging 3 months
o
nt
u
o
Am
ATA* inline storage
ata
D
f
Email archive
A
al
ev
tri
Re
Fast access tape
i
iv
ct
Data Value
&
Reference
Frequency
Update Journal
Nearline (ms)
Aging to 1 Year
ty
Capacity tape
Nearline (min)
Aging to 1+ Years
Deletion
Low
Time
Magnetic Roadmap
December 2004 Rob Hardeman
*Advanced Technology Attached
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