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WD RE3 XL333M

ATA Command Set

2679-701179-A01

RELEASED 11/13/08 (WD CONFIDENTIAL)

33

4.3

Identify Device (ECh)

The Identify Device command transfers 512 bytes of data that specify the drive’s parameters.
Table 4-7 lists the parameters read by the host

Table 4-7. Identify Device Command

WORD

FIELD DESCRIPTION

VALUE

0

General Configuration

427Ah

1

Obsolete

0

2

Specific Configuration

C837h

3

Obsolete

0

4-5

Retired

0

6

Obsolete

0

7-8

Reserved

0

9

Retired

0

10-19

Serial Number (ATA String)

WDnnnnnnnn

20-21

Retired

0

22

Obsolete

0

23-26

Firmware Revision (ATA String)

nnnn

27-46

Model Numbers (ATA String)

“WDC WD7502ABYS-nnnnnn”

“WDC WD1002FBYS-nnnnnn”

47

Read/Write Multiple support

Bit 15-8: 80h
Bit 7-0: 00h = Reserved
01h-FFh = Maximum number of logical sectors that shall be
transferred perDRQ data block on READ/WRITE MULTIPLE
commands

8010h

48

Trusted Computing feature set options

Bit 15: Shall be cleared to zero
Bit 14: Shall be set to zero
Bit 13-1: Reserved for the Trusted Computing Group
Bit 0: If set, Trusted Computing feature set is supported

0

49

Capabilities

Bit 15-14: Reserved for the IDENTIFY PACKET DEVICE
command.
Bit 13: 1 = Standby timer values as specified in this standard
are supported, 0 = Standby timer values shall be managed by
the device
Bit 12: Reserved for the IDENTIFY PACKET DEVICE
command.
Bit 11: 1 = IORDY supported 0 = IORDY may be supported
Bit 10: 1 = IORDY may be disabled
Bit 9: 1 = LBA supported
Bit 8: 1 = DMA supported.
Bit 7-0: Retired

2F00h

50

Capabilities

Bit 15: Shall be cleared to zero.
Bit 14: Shall be set to one.
Bit 13-2: Reserved.
Bit 1: Obsolete
Bit 0: Shall be set to one to indicate a vendor specific Standby
timer value minimum

4001h

51-52

Obsolete

0

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Summary of Contents for WD RE3 XL333M

Page 1: ...Technical Reference Manual WD CONFIDENTIAL WD RE3 XL333M Enterprise SATA Hard Drives WD1002FBYS WD7502ABYS ...

Page 2: ...D logo and WD Caviar are registered trademarks in the U S and other countries and IntelliSeek NoTouch RAFF StableTrac Data Lifeguard CacheFlow and FIT Lab are trademarks of Western Digital Technologies Inc Other marks may be mentioned herein that belong to other companies Western Digital 20511 Lake Forest Drive Lake Forest CA 92630 2679 701179 A01 Document Control Number Definition 2679 001xxx 0xx...

Page 3: ...2679 701179 A01 RELEASED 11 13 08 WD CONFIDENTIAL WD RE3 XL333M WD1002FBYS WD7502ABYS Technical Reference Manual ...

Page 4: ...RELEASED 11 13 08 WD CONFIDENTIAL 2679 701179 A01 ...

Page 5: ...nitions 13 2 8 Agency Approvals 14 2 9 Full Model Number Specification 14 3 PRODUCT FEATURES 15 3 1 SATA 3 Gb s 16 3 2 Time Limited Error Recovery TLER 16 3 3 Rotary Acceleration Feed Forward RAFF 17 3 4 Perpendicular Magnetic Recording PMR 17 3 5 IntelliSeek 18 3 6 NoTouch Ramp Load Technology 18 3 7 StableTrac Double tied Shaft Motor 18 3 8 Native Command Queuing NCQ 18 3 9 Pre emptive Wear Leve...

Page 6: ...mmands 28 4 1 3 Obsolete Commands 28 4 1 4 SCT Commands 29 4 2 S M A R T B0h 29 4 2 1 Read Attribute Values Sub Command 29 4 2 2 Supported Attributes 31 4 2 3 Read Log Sector 32 4 3 Identify Device ECh 33 4 4 Set Features EFh 39 5 INSTALLATION AND SETUP PROCEDURES 40 5 1 Unpacking 40 5 1 1 Handling Precautions 40 5 1 2 Inspection of Shipping Container 40 5 1 3 Removal From Shipping Container 40 5 ...

Page 7: ...imensions 7 Figure 2 2 Drive Base Casting Thermocouple Location 11 Figure 2 3 Forced Airflow Direction 12 Figure 2 4 Standard Factory Connectors 13 Figure 3 1 Dual Linear Sensor Rotational Acceleration Feed Forward RAFF 17 Figure 5 1 Jumper Settings 42 Figure 5 2 Connector Locations 43 Figure 5 3 SATA Interface Cable 43 ...

Page 8: ...ce Pin Connector Pin Definitions 13 Table 2 3 Full Model Number Description 14 Table 4 1 ATA 7 ATA 8 Command Opcodes 27 Table 4 2 Optional Subcommands 28 Table 4 3 Obsolete Command Opcodes 28 Table 4 4 SCT Action Codes 29 Table 4 5 Definitions for the 512 Bytes 29 Table 4 6 Defined Error Logging Sectors 32 Table 4 7 Identify Device Command 33 ...

Page 9: ...and best in class vibration tolerance these drives are the ultimate in Enterprise SATA storage These hard drives are your best choice for today s powerful information hungry systems running Windows 2000 Advanced Server Windows 2003 Server Windows Vista Windows XP and Windows 2000 operating systems on Intel Itanium Xeon and Pentium 4 as well as AMD processors WD s rugged and reliable hard drives ar...

Page 10: ...ive Command Queuing NCQ Performance of a random I O workload can be improved through intelligent re ordering of the I O requests so they read write to and from the nearest available sectors and minimize the need for additional disk revolutions or head actuator movement This improvement can be achieved though Native Command Queing NCQ which is supported by these hard drives Pre emptive Wear Levelin...

Page 11: ...tial and random write cache With write cache and other CacheFlow features the user can cache both read and write data The cache can hold multiple writes and collectively write them to the hard disk 48 bit Logical Block Addressing LBA WD SATA drives support both 48 bit and 28 bit LBA and CHS based addressing LBA is included in advanced BIOS and operating system device drivers and ensures high capac...

Page 12: ...e 9s average Spindle Stop Time 15s average Load Unload Cycles4 300 000 minimum 1 As used for transfer rate or interface megabyte per second MB s one million bytes per second and gigabit per second Gb s one billion bits per second Effective maximum SATA 3 Gb s transfer rate calculated according to the Serial ATA specification published by the SATA IO organization as of the date of this specificatio...

Page 13: ...orage capacity one megabyte MB one million bytes one gigabyte GB one billion bytes and one terabyte TB one trillion bytes Total accessible capacity varies depending on operating environment As used for buffer or cache one megabyte MB 1 048 576 bytes As used for transfer rate or interface megabyte per second MB s one million bytes per second and gigabit per second Gb s one billion bits per second E...

Page 14: ...FIDENTIAL 2679 701179 A01 2 2 1 Physical Dimensions English Metric Dimension Tolerance Dimension Tolerance Height 1 028 inches MAX 26 1 mm MAX Length 5 787 inches MAX 147 0 mm MAX Width 4 00 inches 0 01 inch 101 6 mm 0 25 mm Weight 1 52 pounds 10 0 69 kg 10 ...

Page 15: ...Specifications 2679 701179 A01 RELEASED 11 13 08 WD CONFIDENTIAL 7 2 3 Mechanical Specifications Figure 2 1 shows the mounting dimensions and locations of the screw holes for the drive Figure 2 1 Mounting Dimensions ...

Page 16: ...g Mode RMS Current1 Power Average1 12 VDC 5 VDC Spinup max 2 075A 1 1A 30 4W Spinup 1 1A 450 mA 15 5W Read Write 470 mA 480 mA 8 0W Random Seek 525 mA 470 mA 8 7W POWER MANAGEMENT COMMANDS Operating Mode RMS Current1 Power Average1 12 VDC 5 VDC Idle E1H 440 mA 390 mA 7 2W Standby E0H 5 mA 160 mA 1 0W Sleep E6H 5 mA 160 mA 1 0W 1 All values are typical 25 C 5 0V and 12V input 3 3V Serial ATA power ...

Page 17: ...erialata org At the time of this printing there are no published standards for SATA power mating connectors or power data cable wire gauges Cabling Requirements for SATA The SATA cable consists of four conductors in two differential pairs The cable may also include drain wires to be terminated to the ground pins in the SATA cable receptacle connectors See the SATA 1 0 specification for cable speci...

Page 18: ...is at a time The drive incurs no physical damage when subjected to continuous vibration not exceeding the level listed in Table 2 1 Packaged Shock and Vibration The shipping packaging is designed to meet the National International Safe Transit Association N ISTA standards for packaged products The drive incurs no physical damage when subjected to the N ISTA standards Shock Operating 30G 2 ms read ...

Page 19: ...l Gradient 20 C hour maximum Humidity Gradient 20 hour maximum Non operating Temperature 40 C to 70 C Humidity 5 95 RH non condensing 33 C maximum wet bulb Thermal Gradient 30 C hour maximum Humidity Gradient 20 hour maximum 1 Ambient temperature is defined as the temperature of the environment immediately surrounding the drive The system environment must allow sufficient air flow to limit maximum...

Page 20: ...n new equipment and consists of restrictions on lead mercury cadmium and other substances The reliability performance and specifications of WD products are unchanged from previously manufactured WD products remaining among the highest in the industry 2 6 Reliability Specifications Altitude Operating 1 000 feet to 10 000 feet 305M to 3 050M Non operating 1 000 feet to 40 000 feet 305M to 12 200M TY...

Page 21: ...y Connectors Table 2 2 Device Pin Connector Pin Definitions Signal segment S1 Gnd 2nd mate S2 A Differential signal pair A from Phy S3 A S4 Gnd 2nd mate S5 B Differential signal pair B from Phy S6 B S7 Gnd 2nd mate Key and spacing separate signal and power segments Power segment P1 V33 3 3 V power NC P2 V33 3 3 V power NC P3 V33 3 3 V power pre charge 2nd mate NC P4 Gnd 1st mate GROUND P5 Gnd 2nd ...

Page 22: ...Apparatus CE Compliance for Europe Verified to comply with EN55022 2006 for RF Emissions and EN55024 1998 A1 2001 A2 2003 EN61000 3 2 2000 EN61000 3 3 1995 A1 2001 for Generic Immunity as applicable C Tick Compliance for Australia Verified to comply with AS NZ3548 for RF Emissions as required by the Australian Communications Authority Korean RRL Mark Registered as a Class B product with the South ...

Page 23: ... StableTrac Native Command Queuing NCQ Pre Emptive Wear Leveling PWL Femto Slider S M A R T Command Transport SCT World Wide Name WWN Reliability Features Set Data Lifeguard Hot Plug Support Active LED Status Fluid Dynamic Bearings FDB Staggered Spin Up and Activity Indication SATA Power Pin 11 CacheFlow 48 bit Logical Block Addressing LBA Power Management Self Monitoring Analysis and Reporting Te...

Page 24: ...iency through automated activation of the DMA controller Device Configuration Overlay DCO allows hiding of supported features via a SATA feature mask 3 2 Time Limited Error Recovery TLER WD has delivered coordinated error management in the form of Time Limited Error Recovery TLER TLER capable hard drives will perform the normal error recovery and after 7 seconds issue an error message to the RAID ...

Page 25: ...ignal DSS RV control effort feed forwarding is achieved by digitizing the DSS then sending it to the microprocessor of the drive Using a control algorithm the microprocessor generates a control effort signal based on the DSS This feed forward control effort is in addition to the conventional servo control approach in hard drive operations Adaptation to environmental conditions is crucial to the su...

Page 26: ...ting in improved long term reliability due to less head wear and improved non operational shock tolerance 3 7 StableTrac Double tied Shaft Motor Used exclusively on WD high capacity hard drives StableTrac motors feature both top and bottom attachment points which lowers susceptibility to mistracking or misreading data by system induced vibration Most current hard drive designs feature motors that ...

Page 27: ...includes the following commands Write Same Read Write Long Temperature Reporting 3 11 1 Write Same The Write Same command allows the host to erase the media or write a pattern repeatedly across the media with a minimum of data transfer from the host The host can clear the entire media to zeros or a specific pattern by sending this command with the pattern as a parameter no data transfer is necessa...

Page 28: ...to data protection Data Lifeguard includes features that enhance the drive s ability to prevent data loss Data Lifeguard data protection utilities include thermal management an environmental protection system and embedded error detection and repair features that automatically detect isolate and repair problem areas that may develop over the extended use of the hard drive With these enhanced data r...

Page 29: ...ed at low pressure area Enhanced heat dissipation 3 13 4 Recoverable Errors A sector marked for repair is written back to the same location The sector is then read several times to be sure that it was written correctly and that there is no media damage at its location sector test If the sector does not easily and consistently read correctly the sector is then relocated with original data 3 13 5 Un...

Page 30: ...t retirement if required and no error is reported The following item is specific to automatic defect retirement on reads read auto relocation When host retries are enabled the drive will internally flag any unrecoverable errors DAMNF or ECC This flagging allows subsequent write commands to this location to relocate the sector only if the sector test fails 3 13 10 Error Recovery Process The drive h...

Page 31: ...modification to be hot pluggable and provide the necessary building blocks for a robust hot plug solution which typically includes Device detection even with power downed receptacles typical of server applications Pre charging resistors to passively limit inrush current during drive insertion Hot plug controllers to actively limit inrush current during drive insertion 3 15 Active LED Status The dr...

Page 32: ...18 CacheFlow CacheFlow is WD s unique multi generation disk caching system It incorporates read cache with write cache WD designed CacheFlow to obtain maximum performance with today s most popular operating systems and applications CacheFlow increases performance over prior caching algorithms by increasing the number of times that requested data is in the cache This reduces the number of host comm...

Page 33: ...ive wear on the drive due to the starting and stopping of the HDA set the host s disk inactivity timer to no shorter than ten minutes The drive also supports the SATA power management feature that lowers the average power consumption of the SATA interface 3 21 Self Monitoring Analysis and Reporting Technology S M A R T S M A R T helps you monitor a drive s internal status through diagnostic comman...

Page 34: ...next power on reset or hard reset 3 22 2 Security Levels High If High level security is set and the user password is forgotten the master password can be used to unlock the drive and access the data Maximum If Maximum level security is set and the user password is forgotten data access is impossible Only the master password with a Security Erase Unit command can unlock the drive when the device lo...

Page 35: ...LOAD MICROCODE 92 EXECUTE DEVICE DIAGNOSTIC 90 FLUSH CACHE E7 FLUSH CACHE EXT EA IDENTIFY DEVICE EC IDLE E3 IDLE IMMEDIATE E1 NOP 00 READ BUFFER E4 READ DMA C8 READ DMA EXT 25 READ FPDMA QUEUED 60 READ LOG EXT 2F READ LOG DMA EXT 47 READ MULTIPLE C4 READ MULTIPLE EXT 29 READ NATIVE MAX ADDRESS F8 READ NATIVE MAX ADDRESS EXT 27 READ SECTOR S 20 READ SECTORS S EXT 24 READ VERIFY SECTOR S EXT 42 READ...

Page 36: ... 4 3 lists the hexadecimal codes specific to each obsolete command supported by these hard drives Table 4 3 Obsolete Command Opcodes STANDBY E2 STANDBY IMMEDIATE E0 WRITE BUFFER E8 WRITE DMA C9 WRITE DMA EXT 35 WRITE FPDMA QUEUED 61 WRITE LOG EXT 3F WRITE LOG DMA EXT 57 WRITE MULTIPLE C5 WRITE MULTIPLE EXT 39 WRITE SECTOR S 30 WRITE SECTOR S EXT 34 WRITE UNCORRECTABLE EXT 45 COMMAND SUBFUNCTION DO...

Page 37: ...commands that are selectable via the Features Register when the host issues the S M A R T command To select a sub command the host must write the appropriate sub command code to the Features Register before issuing the S M A R T command The sub commands and their respective codes are listed below For more detailed information on executing S M A R T commands see the ATA 7 specification 4 2 1 Read A...

Page 38: ... suspected to be caused by handling 09 0Eh Reserved 0Fh Self test routine in progress 364 365 XX Total time in seconds to complete offline data collection activity 366 XX Reserved 367 07Bh Offline data collection capability Bits are as follows 0 1 Offline Immediate Command supported 1 1 Auto Offline enable disable command supported 2 0 Offline will suspend on and will resume after host command 3 1...

Page 39: ...ute ID Number Pre Failure Advisory Bit Status Flags bit 0 1 Read Error Rate 1 Pre Failure Spin up Time 3 Pre Failure Start Stop Count 4 Advisory Re allocated Sector Count 5 Pre Failure Seek Error Rate 7 Pre Failure Power on Hours Count 9 Advisory Spin up Retry Count 10 Pre Failure Drive Calibration Retry Count 11 Advisory Drive Power Cycle Count 12 Advisory Emergency Retract Cycles 192 Advisory Lo...

Page 40: ...g 4 errors per sectors ExtLog RO 04h 05h Reserved Reserved Reserved 06h SMART self test log SMART RO 07h Extended SMART self test log ExtLog RO 08h 0FH Reserved Reserved Reserved 10h NCQ command error ExtLog RO 09H Selective self test log SMART R W 0Ah 0Fh Reserved Reserved Reserved 11h SATA PHY Counters ExtLog RO 12h 17h Reserved Reserved Reserved 18h 7Fh Reserved Reserved Reserved 80h 9Fh Host v...

Page 41: ...of logical sectors that shall be transferred perDRQ data block on READ WRITE MULTIPLE commands 8010h 48 Trusted Computing feature set options Bit 15 Shall be cleared to zero Bit 14 Shall be set to zero Bit 13 1 Reserved for the Trusted Computing Group Bit 0 If set Trusted Computing feature set is supported 0 49 Capabilities Bit 15 14 Reserved for the IDENTIFY PACKET DEVICE command Bit 13 1 Standby...

Page 42: ...in Multi Word DMA Transfer Cycle Time per word ns 120 66 Manufacturer Recommended Multi Word DMA Cycle Time ns 120 67 Min PIO Transfer Cycle Time without flow control ns 120 68 Min PIO Transfer Cycle Time with flow control ns 120 69 70 Reserved 0 71 74 Reserved for the IDENTIFY PACKET DEVICE command 0 75 Queue Depth Bit 15 5 Reserved Bit 4 0 Maximum queue depth 1 001F 76 Serial ATA Capabilities Bi...

Page 43: ... feature sets supported Bit 15 Shall be cleared to zero Bit 14 Shall be set to one Bit 13 If set Flush Cache EXT command supported Bit 12 If set mandatory FLUSH CACHE command supported Bit 11 If set Device Configuration Overlay feature set supported Bit 10 If set 48 bit Address feature set supported Bit 9 If set Automatic Acoustic Management feature set supported Bit 8 If set SET MAX security exte...

Page 44: ...ete Bit 3 If set Advanced Power Management feature set enabled Bit 2 If set CFA feature set supported Bit 1 If set READ WRITE DMA QUEUED command supported Bit 0 If set DOWNLOAD MICROCODE command supported 101111XX01X0X001b 87 Commands and feature sets supported Bit 15 Shall be cleared to zero Bit 14 Shall be set to one Bit 13 If set IDLE IMMEDIATE with UNLOAD FEATURE supported Bit 12 11 Reserved B...

Page 45: ... seek delay for ISO 7779 acoustic testing in microseconds 0000h 108 111 World Wide Name XXXXXXXXXXXXXXXX 112 127 Not supported 0 128 Security Status Bit 15 9 Reserved Bit 8 Security level 0 High 1 Maximum Bit 7 6 Reserved Bit 5 If set Enhanced security erase supported Bit 4 If set Security count expired Bit 3 If set Security frozen Bit 2 If set Security locked Bit 1 If set Security enabled Bit 0 I...

Page 46: ...ATA Command Set WD RE3 XL333M 38 RELEASED 11 13 08 WD CONFIDENTIAL 2679 701179 A01 255 Integrity Word Bit 15 8 Checksum Bit 7 0 Signature XXA5h WORD FIELD DESCRIPTION VALUE ...

Page 47: ...ed Power Management 85h Don t care Enable use of Serial ATA Feature 10h 02h DMA Setup FIS Auto Activate optimization 03h Device initiated interface power state transitions 06h Software Settings Preservation Disable use of Serial ATA Feature 90h 02h DMA Setup FIS Auto Activate optimization 03h Device initiated interface power state transitions 06h Software Settings Preservation Set Acoustic Mode2 4...

Page 48: ...act with the hard drive or circuit board components When the WD drive is not in its shipping container or installed in its proper host enclosure it must remain in the antistatic bag To prevent damage do not unpack your WD drive until you are ready to install it 5 1 2 Inspection of Shipping Container Carefully examine the container for obvious shipping damage such as holes signs of crushing or stai...

Page 49: ... of the side mounting screws to rigidly support the drive and prevent vibration Some adaptor frames may not have the mechanical design structure capable of mounting the drive to meet the specified shock and vibration requirements The hard drive itself does not provide electrical isolation between mounting locations and drive ground connection If electrical isolation is required the system designer...

Page 50: ...ounting on page 41 there may be increased electrical emissions EMI 5 3 Hard Drive Installation If your system does not support hot plugging see Hot Plug Support on page 23 it must be turned off and unplugged before installing your hard drive 5 3 1 Jumper Settings It is not necessary to move the jumper shunt on the drive for workstation desktop use For enterprise storage enviroments the advanced se...

Page 51: ...nector on the motherboard or 2 Cable the drive to a host adapter card mounted in one of the expansion slots in the com puter Both configurations use a SATA interface cable Make sure the SATA interface cable is no longer than 1 meter 39 37 inches to minimize noise that is induced on the data and control buses Figure 5 3 SATA Interface Cable 5 4 Serial ATA Latching Connector This hard drive also all...

Page 52: ... Avoid static discharge when handling a drive Avoid harsh shocks or vibrations Do not touch the components on the printed circuit board Observe the environmental limits specified for this product If it becomes necessary to move your computer system turn off the power to automatically park the heads Parking the heads moves them to a safe non data landing zone and locks them into place This helps pr...

Page 53: ...e variety of technical support services on our Internet site at support wdc com NORTH AMERICA US Canada Central Time 800 ASK 4WDC Monday Thursday 9 00 am 7 00 pm Friday 9 00 am 5 00 pm Saturday 8 00 am 5 00 pm EUROPE Central European Time CET 31 20 4467651 Monday Thursday 9 30 am 12 00 noon 1 00 pm 5 30 pm Friday 9 30 am 12 00 noon 1 00 pm 4 00 pm ...

Page 54: ...bad areas of the media ECC On the Fly A hardware correction technique that corrects errors in the read buffer prior to host transfer without any performance penalties These error corrections are invisible to the host system because they do not require assistance from the drive s firmware Error Correction Code ECC A mathematical algorithm that can detect and correct errors in a data field by adding...

Page 55: ...iseconds RPM Revolutions per Minute Rotational speed of the media disk also known as the spindle speed Hard drives spin at one constant speed The slower the RPM the higher the mechanical latencies Disk RPM is a critical component of hard drive performance because it directly impacts the rotational latency of the disk transfer rate Seek Time The time it takes for the read write head to move to a sp...

Page 56: ...e Name WWN defined in ATA ATAPI 7 is a modification of the IEEE extended unique identifier 64 bit standard EUI 64 and is comprised of three major components naming authority organizationally unique identifier OUI and serial number WD s OUI is 0014EEh Write Cache A feature in CacheFlow that posts command complete prior to completing the actual write ...

Page 57: ...r Rate 4 Error Recovery Process 22 F Femto slider 19 Fluid Dynamic Bearings FDB 23 G Glossary 46 Grounding Hard Drive 42 H Head Parking 5 Host Interface Commands 27 Identify Drive 33 S M A R T 29 Set Features 39 Hot Plug Support 23 I Input Voltage Requirements 9 Installation and Setup 40 Interleave 4 Internal Environmental Protection System 21 J Jumper Settings 42 L Latency 4 LED active status 23 ...

Page 58: ...ion 10 Specifications 4 Electrical 8 Environmental 10 Mechanical 7 Performance 4 Physical 5 Reliability 12 Spindle Start Time 4 StableTrac 18 Staggered Spinup 24 T Technical Support 45 Online Services 45 Temperature Airflow 12 Thermocouple location 11 Temperature and Humidity 11 Thermal Management 21 Thermocouple location 11 Time limited error recovery TLER 16 TLER 16 U Unpacking Container Inspect...

Page 59: ...www westerndigital com 800 ASK 4WDC North America 949 672 7199 Spanish 800 6008 6008 Asia Pacific 31 20 4467651 Europe Middle East Africa 2679 701179 A01 Nov 2008 Western Digital 20511 Lake Forest Drive Lake Forest CA 92630 U S A WD CONFIDENTIAL ...

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