Page 2 - Western Digital
© 1997 Western Digital Corporation All Rights Reserved Information furnished by Western Digital Corporation is believed to be accurate and reliable. No licenseis granted by implication or otherwise under any patent or patent rights of Western Digital Corporation.Western Digital Corporation reserves ...
Page 3 - Technical Reference Manual
4079-001045 Rev. B RELEASED 04-08-97 WD Enterprise WDE2170/WDE4360 (CCC: A9) Technical Reference Manual
Page 5 - Table of Contents; ABLE OF
WD Enterprise WDE2170/WDE4360 Table of Contents 4079-001045 Rev. B RELEASED 04-08-97 i T T ABLE OF ABLE OF C C ONTENTS ONTENTS 1. D ESCRIPTION AND F EATURES ............................................................................. 1 1.1. General Description..........................................
Page 7 - LL; IST OF; FF; IGURES
WD Enterprise WDE2170/WDE4360 Table of Contents 4079-001045 Rev. B RELEASED 04-08-97 iii LL IST OF IST OF FF IGURES IGURES Figure 2-1. 50-pin Drive Dimensions .......................................................................................... 7Figure 2-2. 68-pin Drive Dimensions ................
Page 9 - Description and Features; ESCRIPTION AND; Description
WD Enterprise WDE2170/WDE4360 Description and Features 4079-001045 Rev. B RELEASED 04-08-97 1 1. D ESCRIPTION AND F EATURES 1.1. General Description Designed to set a new direction in mass storage solutions, the WD Enterprise™ low-profile 3.5-inch hard drives are the first in a family of 7200 RPM pr...
Page 10 - Features; Product Features
Description and Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 2 1.2. Advanced Features Product Features Formatted Capacities of 2.17 GB and 4.36 GB Low-profile 1-Inch (25.4 mm) in Height 7200 RPM Spindle Speed SCSI-3 SPI Compliant; Ultra Fast/Ultra Fast Wide with SCA-2 ...
Page 11 - Data Buffer of 1 Megabyte
WD Enterprise WDE2170/WDE4360 Description and Features 4079-001045 Rev. B RELEASED 04-08-97 3 1.3. Options Upon request, the following options are incorporated at the time of production. Data Buffer of 1 Megabyte The standard data buffer size is 512 kilobytes. You may order a 1 megabyte option.For m...
Page 12 - PECIFICATIONS; Specifications; PERFORMANCE CRITERIA
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 4 2. S PECIFICATIONS 2.1. Performance Specifications Table 2-1. WDE2170/4360 Performance Specifications PERFORMANCE CRITERIA WDE2170/WDE4360 SPECIFICATIONS Average Seek • Read • Write 8 ms9.5 ms Track-to-Track Seek • R...
Page 13 - Physical Specifications
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 5 2.2. Physical Specifications Table 2-2. WDE2170/4360 Physical Specifications Physical Specifications WDE2170 WDE4360 Formatted Capacity 1 2170 MB 4360 MB Interface(s) Ultra Fast • (50-pin) Ultra Fast Wide • (68-pin) ...
Page 15 - Dimension
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 7 2.3. Mechanical Specifications Figure 2-1 through Figure 2-3 show the mounting dimensions and locations of the screwholes for the WDE2170 and WDE4360 drives. Figure 2-1. 50-pin Drive Dimensions Table 2-4. 50-pin Driv...
Page 19 - Table 2-7. WDE2170 Current Requirements and Power Dissipation; Table 2-8. WDE4360 Current Requirements and Power Dissipation
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 11 2.4. Electrical Specifications 2.4.1. Current Requirements and Power Dissipation Table 2-7. WDE2170 Current Requirements and Power Dissipation Operating Mode Current Population Mean + 4 Sigma Current Population Mean...
Page 21 - reserved for the drive’s internal use.
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 13 2.4.3. Input Voltage Requirements The input voltage requirements for the WDE2170 and WDE4360 are as follows: + 5V ± 5% and + 12V ± 5% 2.4.4. Ripple Table 2-9. Voltage Ripple +12 VDC +5 VDC Maximum Start: 400 mV (pea...
Page 22 - Shock; Vibration; Operating Shock
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 14 2.5. Environmental Specifications 2.5.1. Shock and Vibration All shock and vibration specifications apply to the mounting and orientation conditionsdescribed in section 2.3. Orientation axes are defined in Figure 2-...
Page 23 - Operating Vibration
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 15 Operating Vibration WD Enterprise drives are tested by applying a continuous swept sine excitation in eachlinear axis, one axis at a time. Sweep rate is one octave per minute. The drive incurs no physical damage and...
Page 24 - Temperature and Humidity; Table 2-12. Maximum & Reliability Operating Temperature Limits; Component
Specifications WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 16 2.5.2. Temperature and Humidity Table 2-11. Temperature and Humidity Temperature and Humidity Operating 1 Temperature Humidity Thermal Gradient 5°C to 55°C (41°F to 131°F) 10-90% RH non-condensing 33°C (maximum wet ...
Page 25 - Altitude; Mode
WD Enterprise WDE2170/WDE4360 Specifications 4079-001045 Rev. B RELEASED 04-08-97 17 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-...
Page 29 - Advanced Product Features; DVANCED
WD Enterprise WDE2170/WDE4360 Advanced Product Features 4079-001045 Rev. B RELEASED 04-08-97 21 3. A DVANCED P RODUCT F EATURES 3.1. Compatibility Testing Western Digital performs extensive testing in its Functional Integrity Test Lab (FITLab™). By equipping the FIT Lab with multiple host systems, a...
Page 30 - Command Queuing and Reordering
Advanced Product Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 22 3.8. Command Queuing and Reordering The drives support both tagged and untagged queuing. Tagged queuing allows the driveto receive multiple I/O processes from each initiator. Untagged queuing allows the d...
Page 31 - Recording; If an LED is installed on the drive, the following occurs:
WD Enterprise WDE2170/WDE4360 Advanced Product Features 4079-001045 Rev. B RELEASED 04-08-97 23 3.13. Zoned Recording The drives employ zoned recording to increase data density on the outer tracks of thedrive. Zoned recording allows the adjustment of the number of sectors per track, whichprovides st...
Page 32 - Note: For more information on the option block, refer to section 5.
Advanced Product Features WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 24 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 d...
Page 35 - SCSI Interface and Command Set; NTERFACE AND
WD Enterprise WDE2170/WDE4360 SCSI Interface and Command Set 4079-001045 Rev. B RELEASED 04-08-97 27 4. SCSI I NTERFACE AND C OMMAND S ET Refer to the Western Digital SCSI Implementation Guide (document number 4096-001116).
Page 36 - The Option Block; HE; Note: Jumpers should only be changed when the drive is powered down.; Characteristics; Figure 5-1. Option Block and LED Pin Designation
The Option Block WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 28 5. T HE O PTION B 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 SCSIcommand...
Page 37 - Option Block Pin Assignments; PINS
WD Enterprise WDE2170/WDE4360 The Option Block 4079-001045 Rev. B RELEASED 04-08-97 29 5.3. Option Block Pin Assignments The option block is used to modify the drive characteristics. The table below shows thepin numbers that correspond to each option or signal, and provides instruction forenabling a...
Page 38 - SCSI ID Jumper Table; JUMPER LOCATION
The Option Block WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 30 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 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 * If any devic e on your comp ute...
Page 39 - SCSI Connectors; ONNECTORS; Power Connectors and Cables; SCSI Physical Interface
WD Enterprise WDE2170/WDE4360 SCSI Connectors 4079-001045 Rev. B RELEASED 04-08-97 31 6. SCSI C ONNECTORS 6.1. Power Connectors and Cables Table 6-1. 50-pin Drive Power Connector and Cable POWER CONNECTOR MATING CONNECTOR WIRE GAUGE AMP 2-in-1 1x4 PC power connector 18 AWG Table 6-2. 68-pin Drive Po...
Page 40 - 0-Pin SCSI Connector; Figure 6-1. 50-Pin SCSI Connector and Power Connector Pin Numbers; DRIVE OUTLINE
SCSI Connectors WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 32 6.3. 50-Pin SCSI Connector Figure 6-1. 50-Pin SCSI Connector and Power Connector Pin Numbers 50 49 51 52 2 1 53 54 DRIVE OUTLINE
Page 42 - 8-Pin SCSI Connector; D R I V E O U T L I N E
SCSI Connectors WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 34 6.4. 68-Pin SCSI Connector Figure 6-2. 68-Pin SCSI Connector, Remote Option Connector, and Power Connector Pin Numbers 8 1 8 2 8 3 8 4 8 0 7 9 7 0 6 9 6 8 3 4 3 5 1 D R I V E O U T L I N E
Page 44 - Signal Name
SCSI Connectors WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 36 Table 6-6. Remote Option for 68-Pin Connector (single-ended and differential versions) Signal Name SFF-8009 Signal Name SFF-8009 Pin Number Pin Number SFF-8009 Pin Number SFF-8009 Signal Name Signal Name SCSI ID 0 ...
Page 46 - Installation and Maintenance; NSTALLATION AND; Maintaining the Drive; Avoid harsh shocks or vibrations.
Installation and Maintenance WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 38 7. I NSTALLATION AND M AINTENANCE For instructions on installing the drive, including drive handling and mounting, determining theconfiguration, setting the drive jumpers, and cabling procedures, refer...
Page 47 - Technical Support; ECHNICAL
WD Enterprise WDE2170/WDE4360 Technical Support 4079-001045 Rev. B RELEASED 04-08-97 39 8. T ECHNICAL S UPPORT If you have a problem with your WD Enterprise drive, the following tips may help determine thecause of the problem. Verify that you have correctly followed the setup procedures for your sys...
Page 48 - Glossary; LOSSARY
Glossary WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 40 9. G LOSSARY Active Termination - Works to control the impedance at the end of the SCSI bus by using avoltage regulator. This reduces the susceptibility of the bus to noise, particularly when cables arelong or when many d...
Page 51 - Appendix A. — Understanding the Model Number; PPENDIX
WD Enterprise WDE2170/WDE4360 Appendix A. — Understanding the Model Number 4079-001045 Rev. B RELEASED 04-08-97 43 10. A PPENDIX A. — U NDERSTANDING THE M ODEL N UMBER The diagram illustrates the model number convention for WD Enterprise drives. The table illustrates the interface matrix portion of ...
Page 52 - Index; NDEX; Physical Characteristics, 28
Index WD Enterprise WDE2170/WDE4360 RELEASED 04-08-97 4079-001045 Rev. B 44 11. I NDEX —A— Acoustics, 17Actuator Type, 5Adaptive Caching, 21Agency Approvals, 20AOL, 39Atmospheric Pressure, 17Auto Park, 40 —B— Block, 40Bring Up Sequence, 13Buffer, 40Buffer Size, 4Bytes Per Sector, 5 —C— Command Queui...
