Western Digital WDE4360 Technical Reference Manual
Enterprise scsi hard drives
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Summary of Contents for Western Digital WDE4360
- Page 1 Western Digital SCSI Hard Drives WD Enterprise WDE2170 WDE4360 CCC: A9 Technical Reference Manual...
- Page 2 Information furnished by Western Digital Corporation is believed to be accurate and reliable. No license is granted by implication or otherwise under any patent or patent rights of Western Digital Corporation. Western Digital Corporation reserves the right to change specifications at any time without notice.
- Page 3 WD Enterprise WDE2170/WDE4360 (CCC: A9) Technical Reference Manual 4079-001045 Rev. B RELEASED 04-08-97...
- Page 4 RELEASED 04-08-97 4079-001045 Rev. B...
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Page 5: Table Of Contents
WD Enterprise WDE2170/WDE4360 Table of Contents ABLE OF ABLE OF ONTENTS ONTENTS ................1 1. D ESCRIPTION AND EATURES 1.1. General Description......................... 1 1.2. Advanced Features ........................2 1.3. Options ........................... 3 2. S ....................4 PECIFICATIONS 2.1. Performance Specifications...................... 4 2.2. - Page 6 Table of Contents WD Enterprise WDE2170/WDE4360 3.15. LED Support ......................... 23 3.16. Option Block Functions ......................24 3.17. Error Recovery Operations ....................25 3.18. Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) ........25 3.19. Hot Plug/Unplug Support ...................... 26 .............. 27 4.
- Page 7 Figure 2-3. 80-pin Drive Dimensions ..................9 Figure 2-4. Drive Axis Definition ....................10 Figure 2-5. WDE2170 +12V Current Profile ................12 Figure 2-6. WDE4360 +12V Current Profile ................12 Figure 2-7. Drive Baseplate Thermocouple Location..............18 Figure 2-8. PCBA Thermocouple Locations ................19 Figure 5-1.
- Page 8 Table 2-5. 68-pin Drive Dimensions ..................8 Table 2-6. 80-pin Drive Dimensions ..................9 Table 2-7. WDE2170 Current Requirements and Power Dissipation ........11 Table 2-8. WDE4360 Current Requirements and Power Dissipation ........11 Table 2-9. Voltage Ripple ....................... 13 Table 2-10. Shock and Vibration....................14 Table 2-11.
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Page 9: Description And Features
The WDE2170 and WDE4360 drives feature formatted capacities of 2.1 and 4.3 gigabytes with media data transfer rates up to 140 Mbits per second. These drives are SCSI-3 SPI compliant and support Ultra Fast and Ultra Fast Wide host transfer rates of up to 40 MB/s. -
Page 10: Advanced Features
These advanced product features are further defined in section 3. In certain cases we refer you to other documents for additional detail. To obtain a document, contact your local Western Digital sales office, authorized Western Digital reseller, or access the Western Digital web page at www.wdc.com RELEASED 04-08-97 4079-001045 Rev. -
Page 11: Options
The drive is shipped in bulk packaging to provide maximum protection against damage during transit. Units shipped individually require additional protection as provided by the single-unit shipping pack. Contact your local Western Digital sales office for ordering information. Differential SCSI The WD Enterprise drive provides, as an option, differential SCSI drivers/receivers on the 68-pin interface configuration. -
Page 12: Specifications
Specifications WD Enterprise WDE2170/WDE4360 PECIFICATIONS 2.1. Performance Specifications Table 2-1. WDE2170/4360 Performance Specifications PERFORMANCE CRITERIA WDE2170/WDE4360 SPECIFICATIONS Average Seek Read 8 ms 9.5 ms Write Track-to-Track Seek Read 1 ms 2.5 ms Write Full Stroke Seek < 18 ms Average Latency 4.17 ms... -
Page 13: Physical Specifications
0,4,4 RLL 144-bit Reed Solomon 144-bit Reed Solomon Western Digital defines a megabyte (MB) as 1,000,000 bytes and a gigabyte (GB) as 1,000,000,000 bytes. Differential option available on 68-pin models. The standard is 512 byte sectors. Optionally, we will support 512-528 bytes per sector in even byte increments. -
Page 14: Physical Dimensions
Specifications WD Enterprise WDE2170/WDE4360 2.2.1. Physical Dimensions Table 2-3. WDE2170/4360 Physical Dimensions Physical U.S. Metric Characteristic Dimension Tolerance Dimension Tolerance Height 1.00 inch ± 0.02 inch 25.4 mm ± 0.51 mm Length 5.75 inches ± 0.02 inch 146.05 mm ± 0.51 mm Width 4.00 inches... -
Page 15: Mechanical Specifications
WD Enterprise WDE2170/WDE4360 Specifications 2.3. Mechanical Specifications Figure 2-1 through Figure 2-3 show the mounting dimensions and locations of the screw holes for the WDE2170 and WDE4360 drives. Figure 2-1. 50-pin Drive Dimensions Table 2-4. 50-pin Drive Dimensions Dimension Inches Millimeters 4.000... -
Page 16: Figure 2-2. 68-Pin Drive Dimensions
Specifications WD Enterprise WDE2170/WDE4360 Figure 2-2. 68-pin Drive Dimensions Table 2-5. 68-pin Drive Dimensions Dimension Inches Millimeters 4.000 .020 101.60 0.51 3.750 .010 95.25 0.25 2.375 .010 60.32 0.25 1.750 .010 44.45 0.25 5.750 .020 146.05 0.51 .625 .020 15.87 0.51... -
Page 17: Figure 2-3. 80-Pin Drive Dimensions
WD Enterprise WDE2170/WDE4360 Specifications Figure 2-3. 80-pin Drive Dimensions Table 2-6. 80-pin Drive Dimensions Dimension Inches Millimeters 4.000 .020 101.60 0.51 3.750 .010 95.25 0.25 2.375 .010 60.32 0.25 1.750 .010 44.45 0.25 5.750 .020 146.05 0.51 .625 .020 15.87 0.51... -
Page 18: Mounting
Specifications WD Enterprise WDE2170/WDE4360 2.3.1. Mounting The WD Enterprise drives feature side and bottom mounting holes, which allow the drive to be mounted in any orientation. See Figure 2-4 for orientation axes. The hard drive is a precision mechanical assembly. Improper mounting may distort the drive frame and impair its ability to function. -
Page 19: Electrical Specifications
The drive was track following on the OD cylinder for these measurements. This is for a ratio of four reads per one write. Differential option available on 68-pin models only. Table 2-8. WDE4360 Current Requirements and Power Dissipation Operating Current Current... -
Page 20: Current Profile
Specifications WD Enterprise WDE2170/WDE4360 2.4.2. 12V Current Profile The following graphs show the +12V current profile for the WDE2170 and WDE4360 drives during spin-up and run. Figure 2-5. WDE2170 +12V Current Profile 1 .6 S p in u p P e a k A C C u rre n t 1 .4... -
Page 21: Input Voltage Requirements
WD Enterprise WDE2170/WDE4360 Specifications 2.4.3. Input Voltage Requirements The input voltage requirements for the WDE2170 and WDE4360 are as follows: + 5V 5% and + 12V 2.4.4. Ripple Table 2-9. Voltage Ripple +12 VDC +5 VDC Maximum Start: 400 mV (peak-to-peak) -
Page 22: Environmental Specifications
Specifications WD Enterprise WDE2170/WDE4360 2.5. Environmental Specifications 2.5.1. Shock and Vibration All shock and vibration specifications apply to the mounting and orientation conditions described in section 2.3. Orientation axes are defined in Figure 2-4. Table 2-10. Shock and Vibration Shock... - Page 23 WD Enterprise WDE2170/WDE4360 Specifications Operating Vibration WD Enterprise drives are tested by applying a continuous swept sine excitation in each linear axis, one axis at a time. Sweep rate is one octave per minute. The drive incurs no physical damage and no hard errors while subjected to continuous vibration not exceeding the level listed in Table 2-10.
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Page 24: Temperature And Humidity
Specifications WD Enterprise WDE2170/WDE4360 2.5.2. Temperature and Humidity Table 2-11. Temperature and Humidity Temperature and Humidity Operating Temperature 5°C to 55°C (41°F to 131°F) Humidity 10-90% RH non-condensing 33°C (maximum wet bulb) Thermal Gradient 10°C/hour (maximum) Non-Operating Temperature -40°C to 60°C (-40°F to 140°F) -
Page 25: Atmospheric Pressure
WD Enterprise WDE2170/WDE4360 Specifications 2.5.4. Atmospheric Pressure Table 2-13. Allowable Altitude Ranges Altitude Operating -1,000 feet to 10,000 feet (-300m to 3,000m) Non-operating -1,000 feet to 40,000 feet (-300m to 12,000m) 2.5.5. Acoustics Table 2-14. Sound Power Level Mode Typical... -
Page 26: Figure 2-7. Drive Baseplate Thermocouple Location
Specifications WD Enterprise WDE2170/WDE4360 Figure 2-7. Drive Baseplate Thermocouple Location RELEASED 04-08-97 4079-001045 Rev. B... -
Page 27: Figure 2-8. Pcba Thermocouple Locations
WD Enterprise WDE2170/WDE4360 Specifications Figure 2-8. PCBA Thermocouple Locations 4079-001045 Rev. B RELEASED 04-08-97... -
Page 28: Reliability Specifications
Western Digital drives are free of Polychlorinated Biphenyl (PCBs) and Cadmium materials. In addition, prohibited Chlorofluorocarbons (CFCs) are not used in the manufacturing process. Models WDE2170 and WDE4360 meet the safety standards of the following regulatory agencies: Underwriters Laboratories: UL-Standard 1950, Standard for Safety of... -
Page 29: Advanced Product Features
Write Caching Write caching gives the host the ability to allow the drive to asynchronously write data to the media while other processes may occur. Refer to the Western Digital SCSI Implementation Guide (document number 4096-001116) for further details. 3.6. -
Page 30: Command Queuing And Reordering
3.9. Media Defect Management Western Digital drives support a defect management algorithm that uses sector slipping. Defective sites are pushed down during a reassignment operation to maintain a sequential order. Spare sectors are placed throughout the drive to support this algorithm. -
Page 31: Zoned Recording
WD Enterprise WDE2170/WDE4360 Advanced Product Features 3.13. Zoned Recording The drives employ zoned recording to increase data density on the outer tracks of the drive. Zoned recording allows the adjustment of the number of sectors per track, which provides storage of more sectors on the larger, outer tracks. Formatting packs data uniformly throughout the surface of the platter by dividing the outer tracks into more sectors. -
Page 32: Option Block Functions
Advanced Product Features WD Enterprise WDE2170/WDE4360 3.16. Option Block Functions The firmware uses several pins on the option block to modify the drive characteristics. The definitions for the jumpers follow: SCSI ID: Four jumpers are used to identify the default SCSI ID for the drive. -
Page 33: Error Recovery Operations
The drive firmware also implements a software ECC, which is capable of correcting single or double burst errors up to 2 bytes per interleave. Refer to the Western Digital SCSI Implementation Guide (document number 4096- 001116) for more information. 3.18. Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.) -
Page 34: Hot Plug/Unplug Support
Advanced Product Features WD Enterprise WDE2170/WDE4360 3.19. Hot Plug/Unplug Support The conditions for hot-plugging drives into an active SCSI bus follow: The drive signal ground must be made before the SCSI bus signals. Power—both +5V and +12V—cannot be applied until the SCSI bus signals are connected. -
Page 35: Scsi Interface And Command Set
WD Enterprise WDE2170/WDE4360 SCSI Interface and Command Set SCSI I NTERFACE AND OMMAND Refer to the Western Digital SCSI Implementation Guide (document number 4096-001116). 4079-001045 Rev. B RELEASED 04-08-97... -
Page 36: The Option Block
The Option Block WD Enterprise WDE2170/WDE4360 PTION LOCK The WD Enterprise drive PCBA contains an option block that controls the drive’s operation. This block is equipped with jumper pins that correspond to various options controlled by SCSI commands. Jumpers are used to enable or disable the options and modify the drive configuration. -
Page 37: Option Block Pin Assignments
WD Enterprise WDE2170/WDE4360 The Option Block 5.3. Option Block Pin Assignments The option block is used to modify the drive characteristics. The table below shows the pin numbers that correspond to each option or signal, and provides instruction for enabling and disabling these features. Refer to the WD Enterprise Installation Guide (document number 4079-001046) for option definitions. -
Page 38: Scsi Id Jumper Table
The Option Block WD Enterprise WDE2170/WDE4360 5.4. SCSI ID Jumper Table Table 5-2. SCSI ID Jumper Table JUMPER LOCATION SCSI ID Pins 7 & 8 Pins 5 & 6 Pins 3 & 4 Pins 1 & 2 jumper installed jumper removed legal 8-bit bus IDs* * If any device on your computer’s SCSI bus supports only 8-bit SCSI IDs, the WD Enterprise drive must be set to... -
Page 39: Scsi Connectors
6.2. SCSI Physical Interface All Western Digital SCSI hard drives are designed to conform to the SCSI-3 Parallel Interface as described in the draft of proposed ANSI specification X3T10/855D Revision 15a. In addition, drives equipped with the 80-pin SCA connector are designed to conform to the Small Form Factor Committee draft specification SFF-8046 Rev 2.0... -
Page 40: 50-Pin Scsi Connector
SCSI Connectors WD Enterprise WDE2170/WDE4360 6.3. 50-Pin SCSI Connector Figure 6-1. 50-Pin SCSI Connector and Power Connector Pin Numbers DRIVE OUTLINE RELEASED 04-08-97 4079-001045 Rev. B... -
Page 41: Table 6-3. 50-Pin Scsi Connector Pin Assignments
WD Enterprise WDE2170/WDE4360 SCSI Connectors Table 6-3. 50-Pin SCSI Connector Pin Assignments SINGLE-ENDED SCSI CONNECTOR Signal Name Number Signal Name GROUND -DB0 GROUND -DB1 GROUND -DB2 GROUND -DB3 GROUND -DB4 GROUND -DB5 GROUND -DB6 GROUND -DB7 GROUND -DBP GROUND GROUND... -
Page 42: 68-Pin Scsi Connector
SCSI Connectors WD Enterprise WDE2170/WDE4360 6.4. 68-Pin SCSI Connector Figure 6-2. 68-Pin SCSI Connector, Remote Option Connector, and Power Connector Pin Numbers D R IV E O U T L IN E RELEASED 04-08-97 4079-001045 Rev. B... -
Page 43: Table 6-5. 68-Pin Scsi Connector Pin Assignments
WD Enterprise WDE2170/WDE4360 SCSI Connectors Table 6-5. 68-pin SCSI Connector Pin Assignments DIFFERENTIAL SCSI CONNECTOR SINGLE-ENDED SCSI CONNECTOR (OPTIONAL) Signal Name Number Signal Name Signal Name Number Signal Name GROUND -DB12 +DB12 -DB12 GROUND -DB13 +DB13 -DB13 GROUND -DB14 +DB14... -
Page 44: 80-Pin (Sca-2) Scsi Connector
SCSI Connectors WD Enterprise WDE2170/WDE4360 Table 6-6. Remote Option for 68-Pin Connector (single-ended and differential versions) SFF-8009 SFF-8009 Signal SFF-8009 SFF-8009 Signal Signal Signal Name Pin Number Number Pin Number Name Name Name SCSI ID 0 SEL0- XTFALT- GROUND SCSI ID 1... -
Page 45: Table 6-8. 80-Pin (Sca-2) Scsi Connector Pin Assignments
WD Enterprise WDE2170/WDE4360 SCSI Connectors Table 6-8. 80-Pin (SCA-2) SCSI Connector Pin Assignments SINGLE-ENDED SCSI CONNECTOR Signal Name Number Signal Name +12 VOLTS +12V GND +12VOLTS +12V GND +12VOLTS +12V GND +12VOLTS MATED1 reserved reserved reserved GROUND -DB11 GROUND -DB10... -
Page 46: Installation And Maintenance
Caution: Do not remove any product identification labels. The drive requires no preventive maintenance and contains no user-serviceable parts. Service and repair of the drive must be performed at a Western Digital Service Center. Contact your Western Digital representative for warranty information and service/return procedures. -
Page 47: Technical Support
If you have a problem with your WD Enterprise drive, the following tips may help determine the cause of the problem. Verify that you have correctly followed the setup procedures for your system. Check the physical installation: Jumper selections on the WDE2170 and WDE4360 Correct cabling Controller card, properly seated and configured System power supply Observe the environmental limits specified for this product. -
Page 48: Glossary
Adaptive Caching - The drive determines the environment in which it’s being used and optimizes the way it handles commands and data. Auto Park - Turning off the drive's power causes the WDE2170/WDE4360 drive to move the read/write heads to a safe non-data landing zone and locks them in place. - Page 49 Functional Integrity Testing (FIT) - Suite of tests Western Digital performs on all its drive products to ensure compatibility with different hosts, operating systems, adapters, application programs, and peripherals.
- Page 50 Glossary WD Enterprise WDE2170/WDE4360 Servo Burst - Provides positioning information to the actuator arm, usually positioned between sectors or at the end of a track. Single-ended SCSI - Standard electrical interface for SCSI. Single-ended means an interface with one signal line and one corresponding ground line for each SCSI signal.
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Page 51: Appendix A. - Understanding The Model Number
WD Enterprise WDE2170/WDE4360 Appendix A. — Understanding the Model Number A. — U PPENDIX NDERSTANDING THE ODEL UMBER The diagram illustrates the model number convention for WD Enterprise drives. The table illustrates the interface matrix portion of the model number. -
Page 52: Index
Index WD Enterprise WDE2170/WDE4360 NDEX —A— —G— Acoustics, 17 Glossary, 40 Actuator Type, 5 Adaptive Caching, 21 —H— Agency Approvals, 20 AOL, 39 Hard Error, 41 Atmospheric Pressure, 17 Headerless Format, 23 Auto Park, 40 Host Transfer Rate, 41 Hot Plug/Unplug Support, 26 Humidity, 16 —B—... - Page 53 WD Enterprise WDE2170/WDE4360 Index Soft Error, 42 —R— Specifications, 4 Read Caching, 21 Electrical, 11 Recording Method, 5 Environmental, 14 Mechanical, 7 Recoverable Error, 41 Reed Solomon ECC, 22 Performance, 4 Ripple, 13 Physical, 5 Rotational Speed, 4 Reliability, 20 RPM, 4, 41 —T—...
- Page 54 H0300 4/97...
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