Removable Hard Disk Technology - Digital Technology Center Home Page
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Removable Hard Disk Technology Dan Beneke – Imation Corp. 5 th Intelligent Storage Workshop University of Minnesota – Digital Technology Center 15 May 2007
Transcript of Removable Hard Disk Technology - Digital Technology Center Home Page
Removable Hard Disk TechnologyDan Beneke – Imation Corp.
5th Intelligent Storage WorkshopUniversity of Minnesota – Digital Technology Center15 May 2007
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Imation Hard Disk Products
Consumer EnterpriseSMBSOHO
Critical backup and restoreServer storageDrag and Drop functionality
Mega traveldrive™Ultra traveldrive™File transferPortability
Critical backup and restoreDesktop StorageDrag and Drop functionality
Fast restore in automationLegacy tape emulationExternal HDD
Removable HDD
Tape Emulation
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The performance of Hard Disk,The economics of Tape
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• Disk-as-tape cartridge• Ulysses is seen as a tape drive by the system –
so the tape library functions normally, but nowprovides a tier of HDD within the library– Ulysses drives and cartridges are handled just like tape– Ulysses is managed just like tape
• Complements tape– brings virtual tape capability to
automated tape libraries
– tape library accelerator
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differentiators
1. Increases the performance of existing equipment2. Simple – same software and policies as tape3. Works across various automation platforms4. Removable & scalable – forward compatible5. Low entry cost
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Data Data Data Data Data
Tapemark
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Tapemark
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Tapemark
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Tapemark
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Tapemark
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ATLs typically suffer from…
• Backhitching caused by inconsistent data flows
• Delays caused by threading and positioning
Drive transfer rates arenever reached whenbackhitching occurs
Multiplexed and partialbackups incur delaysbefore each job
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HDDs solve those issues by…
• HDD are always spinning
• HDD can directly address data without positioning delays
Inconsistent data flowfrom the network doesnot cause backhitching
Multiplexed or partialbackups incur nopositioning delays
Data Data Data Data Data
Tapemarks1 – n
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Inconsistent data flowfrom the network doesnot cause backhitching
Multiplexed or partialbackups incur nopositioning delays
Ulysses combines the performance of HDD…
• Eliminates backhitching – achieves faster transfer rates
• Time-to-first-byte = 4 seconds
Data Data Data Data Data
Tapemarks1 – n
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…with the economics of tape
• Can start with a single drive and cartridges
• Capacity can be added gradually as needs grow
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1. Standard mobile HDD2. LTO-automation compatible3. Reliable interconnection4. Cartridge reliability5. Anti-static cartridge materials
strengths
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System block diagram
Tape Drive Emulator
Pogo PinConnector
CompressionEngine
SATAInterface Bus controller
Hard Drive Cartridge
Hos
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EmulationFPGA
SCSIInterface
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The Ulysses Cartridge
Emulator Access Door
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#Cycles: 100,000Current: I=0.75 amps for 1s.
Reliable interconnection
Cartridge tested to over 100K cycles w/o increase inimpedance and passes 4-corner environmental conditions
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Anti-static & static-dissipative cartridge
• ESD protection is essential for HDDs– Ulysses cartridge provides both
anti-static and static-dissipativeprotection
• Anti-static cartridges also minimizedust accumulation– Allows robust operation in harsh
environments beyond serverapplications
• Issued patents and patents pending
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Product SpecificationsCartridge
Specifications• Emulates SCSI-based tape drive• External dimensions nearly identical to ½-height LTO drive• Mechanism for load/unload cartridges• Hardware based compression
Reliability: Load/Unload: 250,000 insertionand extractions
Sustained transfer rate 50 MB/sBuffer size 16 MBMedia Load Time 5 secondSystem Interface SCSI 3Data Compression LZS
Specifications• Sealed 2.5” HDD w/ Serial ATA connector• External dimensions are nearly identical to LTO form factor• Same gripper and indent features• Tested 60,000 load/unloads w/no failures• Magnetically enabled Read/Write File protect mechanism
Capacity: 100 GB native(200GB with 2:1 compression)Future capacity follows 2.5” SATA HDD
industry roadmapTransfer Rate: Maximum transfer rate of 37 MB/s
Average transfer rate of 29 MB/sReliability: Unrecoverable errors 1 per 1014 bits read
Load/Unload: 10,000 insertion and extractions
Emulator
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Imation Hard Disk Products
Consumer EnterpriseSMBSOHO
Mega traveldrive™Ultra traveldrive™File transferPortability
Fast restore in automationLegacy tape emulation
Critical backup and restoreServer storageDrag and Drop functionality
Critical backup and restoreDesktop StorageDrag and Drop functionality
Removable HDD
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USB orSATA
Soft Eject Controller &Mechanism
SATA HDD
Removable devicePersonality to Host
R/W to SATA HDD
Issue ATA commands to HDD
GPIO to control mechanics
Docking Station &interface
Removable HDD ConceptOdyssey and RDX
Devicedriver Cartridge
Controller
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SATADevice PHY
ProgrammableMicro
Controller
SATA HostPHY
Enumeration ofHDD
Motor DriverInterface
Status LEDs
Write ProtectSwitch
Eject Button
PC Host SATARHDD
Docking station block diagram
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View from the Operating system side
With out HDD mounted With HDD mounted
CartridgeVolume Name
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RHDD Market segments
• Application segments– Entry-level backup– Data security– Expandable storage
• Device segments– Entry-level servers– Desktops– Laptops
• Consumer segments– SOHO/SMB– Government– Prosumer
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RHDD for entry-level backup
• Primary objective: Data protection• To respond to the increasing requirement for
organizations that don’t use tape, or that wish toexpand data protection to clients
• The attach rate of entry-level tape drives has beendeclining for several years
• The customer experience of tape is causing SMBs tobypass backup to removable media
• Features– Tape replacement– Works with mature backup policies– Works with common backup software– Allows disk spanning across multiple volumes
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RHDD for data security
• Secure workstations: Emerging requirement to securedata to comply with privacy or retention requirements
• Features– Control access to data– Removable data disk– Meet new business & regulatory imperatives
• Primary objective: Prevent unauthorized access to data
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RHDD for expandable storage
• Primary objective: Unlimited data storage• High-speed storage for data-intensive applications
like streaming video• Features
– Capacity– Forward compatibility– Portability– Ease of use
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• Removable HDD Storage System• Technology developed at Imation• Backup/Restore and desktop storage for the SOHO market• External USB Docking Station w/ Rugged HDD cartridge
– 40GB, 80GB and 120GB capacities available– 160GB capacity available in Q2 ‘07
• Bundled with EMC Retrospect backup software– Password protection– 256-bit AES encryption
• Drag-and-drop and ISV-compatible• Internal USB version:
– 3.5” slimline (1” high)– Available Q3 ‘07
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Connector reliability
Cartridge ruggedness
Soft-load mechanism
Electro Static Discharge (ESD) protection
Internal version is compatible with 3.5”floppy standard drive bay
key design features
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Imation Pogo Pin Design
Connector Reliability
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Pogo Pin Interface
InsideCartridge
Connector Reliability
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Gold intact after 20,000 inserts
Gold removed after 100 inserts(Micrographs of RHDD cartridge SATA connectors)
Pogo pins
Friction connector
Friction connectors arenot designed to be inserted
thousands of times
Connector Reliability
Pogo pin connectors aredesigned for tens of
thousands insertions
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• The Odyssey cartridge design exploits the known axis-specific failuremodes of 2.5-inch HDD to increase drop strength
• Failures along the Y-axis occur at much lower shock ratings – theOdyssey cartridge employs additional protection on these focal points
Ruggedness - drop strength
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Soft-load mechanism
• Reliable soft-loadmechanism for highreliability and properpin contact
• Future automationcompatible
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Integrated ESD protection
• ESD protection is essential for HDDs• Odyssey cartridge incorporates
ESD protection and provides bothanti-static and static-dissipativeprotection
• Anti-static cartridges also minimizedust accumulation
• Issued patents and patents pending
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Internal version is compatiblewith 3.5” floppy standard drive bay
• Allows use of often unused floppy drive bay• Doesn’t tie-up 5¼”-HH drive bays used for
other devices, such as optical drives.• 25.4mm x 149mm x 101.6mm• Compatible with Odyssey cartridges• Full interchange with USB
external Odyssey drives.
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• Removable HDD Storage System• Technology licensed from ProStor• Backup/Restore and server storage for the SMB market• External USB & Internal SATA Docking Stations with
Rugged HDD cartridge– 40GB, 80GB, 120GB and 160GB capacities
• Bundled with EMC Retrospect backup software– Password protection– 256-bit AES encryption
• Drag-and-drop and ISV-compatible
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Cartridge ruggedness
Cartridge status indicator
Electro Static Discharge (ESD) protection
OEM adoption by Dell
Available in both SATA internal and USB external
key features
