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)
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Sectors considered
Hard Disc DrivesMedia, Heads, Integration & systems
Tape DrivesMedia, Heads, Integration & systems
Flexible mediaOther storage, security applications
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Hard disc drives – nearly 50 years driven by technology
Historical progress faster than Moore’s law –several technology revolutions e.g GMR heads.
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But the market is changing
Processes and content are becoming
DigitalMobileVirtualPersonal
Carly Fiorina, HP
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A new driving forceConsumer Electronics Market*
Q1 FY0511.6M Units
Growth
Y/Y = 96%
Q/Q = 34%
Samsung
STX25%
Toshiba
8%
GS
4%
WDC15%
HGST18%
MXO14%
Cornice2%
GS MagicStor
3%
Q4 FY048.6M Units
FUJ1%
18%
Samsung4%
STX22%
WDC
HGST12%
FUJ2%
Toshiba21%
MXO23%
Cornice4%
MagicStor4%
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* Includes 3.5-, 2.5-, 1.8- and 1-inch drives
1” drives and below…
iPodMini 4GB
Seagate ST1 CF 5GB card
BUSAN, Korea - September 7, 2004 : Samsung Electronics unveiled the first-ever mobile phone (model: SPH-V5400) with an internal hard disc drive
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Technology alone is no longer enough, but..
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Western Digital view (Feb 2004)
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Challenges for disc drivesSeamless transition to Perpendicular recording (2005-6)
Write poles, Channels, SUL mediaOvercoming 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 solutionsDrive mechanical performance
Shock tolerance, vibration tolerance, COST, COST, COST
Demands of Consumer Electronics applications
A personal opinion from Rob Hardeman December 2004Magnetic RoadmapDecember 2004 Rob Hardeman Page 10
Tape drivesIn 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
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INSIC view
Reported by Dr Richard Dee – StorageTekMagnetic RoadmapDecember 2004 Rob Hardeman Page 12
Tape roadmap – StorageTek
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Tape Drives - LTO
Update – this is now available
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Tape challenges
Maintaining the volumetric and cost advantagesPrecision 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
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Other magnetic media
1. Magnetic stripesEstablished standards for credit cards, tickets.Market will be eroded by chip&pin, RFID etc but still high volumeUnlikely, however, to see significant development..
2. Floppy discBecoming a curiosity – insufficient capacityDrives not being fitted in many PC’sSupplanted by email, USB memory, CD-RW
A personal opinion from Rob Hardeman December 2004
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Information Storage in the UK
http://www.linkisd.org.uk/StorageGuide.pdf (June 2004)Magnetic RoadmapDecember 2004 Rob Hardeman Page 17
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 near-plateaux 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.
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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
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INSIC continuedAdvanced 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
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INSIC Tape Roadmap
342930Data Rate Ratio (Disk/Tape)3.33.33.3Capacity Ratio (Tape/Disk)
MB/sec85522774Disk Drive Data RateTB30.30.03Disk Drive Single Platter Capacity
MB/sec1861.7Data Rate/Channels (User*)MB/sec2582.5Data Rate/Channel (Raw)m/sec106.54Tape SpeedKb/in500250125Linear Tape Bit DensityTb/in98002700900Linear Tape Track Density
m14001000600Approx. Length of Tapemm3.85.38.8Tape ThicknessTB1010.1Tape Cartridge CapacityUnit201120062001Year
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NSIC limit:1 Tbit/sq in
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Aging 30 days
Low
High
Amount of Data
Retrieval Activity
Online (ms)
Nearline (ms)Aging to 1 Year
Online (ms)Aging 3 months
Nearline (min)Aging to 1+ Years
Deletion
Time
Data Value&
ReferenceFrequency
Fast access tapeEmail archive
Capacity tape
Update Journal
ATA* inline storage
Client server disk
Enterprise disk
Storage Mgmt SW
ILM: No single product can make it happen
Virtual tape
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*Advanced Technology Attached