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Western Digital
SCSI Hard Drives
WD Enterprise
WDE2170
WDE4360
CCC: A9
Technical Reference Manual
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Western Digital © 1997 Western Digital Corporation All Rights Reserved 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. Western Digital is a registered trademark. WD Enterprise and FIT Lab are trademarks of Western Digital Corporation. Oth
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WD Enterprise WDE2170/WDE4360 (CCC: A9) Technical Reference Manual 4079-001045 Rev. B RELEASED 04-08-97
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RELEASED 04-08-97 4079-001045 Rev. B
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WD Enterprise WDE2170/WDE4360 Table of Contents T TABLE OF ABLE OF C CONTENTS ONTENTS 1. DESCRIPTION AND FEATURES............................................................................. 1 1.1. General Description................................................................................................................. 1 1.2. Advanced Features .................................................................................................................. 2 1.3. Options ..............
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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
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WD Enterprise WDE2170/WDE4360 Table of Contents L LIST OF IST OF F FIGURES IGURES Figure 2-1. 50-pin Drive Dimensions.......................................................................................... 7 Figure 2-2. 68-pin Drive Dimensions.......................................................................................... 8 Figure 2-3. 80-pin Drive Dimensions.......................................................................................... 9 Figure 2-4. Drive Axis Definition
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Table of Contents WD Enterprise WDE2170/WDE4360 L LIST OF IST OF T TABLES ABLES Table 2-1. WDE2170/4360 Performance Specifications............................................................ 4 Table 2-2. WDE2170/4360 Physical Specifications................................................................... 5 Table 2-3. WDE2170/4360 Physical Dimensions ...................................................................... 6 Table 2-4. 50-pin Drive Dimensions.......................................
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WD Enterprise WDE2170/WDE4360 Description and Features 1. DESCRIPTION AND FEATURES 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 products. The outstanding performance, capacity, and reliability of these mass storage solutions make them the most competitive price/performance choice for workstations, servers, and multi-user systems. The WDE2170 and WDE4360 drives feature
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Description and Features WD Enterprise WDE2170/WDE4360 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 interface supported 512 kilobytes Programmable Multi-segmented Data Buffer (1 MB option) Zoned Recording Headerless Format SCAM Plug-N-Play Compliant Single-ended or Differential SCSI Drivers/Receivers (optional)
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WD Enterprise WDE2170/WDE4360 Description and Features 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 more details, refer to the interface matrix table in Appendix A. Single-unit Shipping Pack Kit The drive is shipped in bulk packaging to provide maximum protection against damage during transit. Units shipped individually require add
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Specifications WD Enterprise WDE2170/WDE4360 2. SPECIFICATIONS 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 • • Write 2.5 ms Full Stroke Seek < 18 ms Average Latency 4.17 ms Rotational Speed 7200 RPM Data Transfer Rate • Media to Buffer 81-140 Mbits/s 40 MB/s max. • Buffer to Host 1 Buffer Size 512 KB 1 MB optional 14 Error Rate - Unrec
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WD Enterprise WDE2170/WDE4360 Specifications 2.2. Physical Specifications Table 2-2. WDE2170/4360 Physical Specifications Physical Specifications WDE2170 WDE4360 1 Formatted Capacity 2170 MB 4360 MB Interface(s) Ultra Fast Ultra Fast • (50-pin) • (50-pin) Ultra Fast Wide Ultra Fast Wide 2 2 • (68-pin) • (68-pin) • (80-pin SCA-2) • (80-pin SCA-2) Actuator Type Rotary Voice Coil Rotary Voice Coil Media Type Thin Film Thin Film Head Type Thin Film Inductive Thin Film Inductive Servo Type Emb
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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 ± 0.02 inch 101.6 mm ± 0.51 mm Weight WDE2170 1.1 pounds ± 0.11 lbs. 0.48 kg ± 0.05 kg Weight WDE4360 1.2 pounds ± 0.11 lbs. 0.53 kg ± 0.05 kg 6 RELEASED 04-08-97 4079-001045 Rev. B
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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 A1 4.000 ± .020 101.60 ± 0.51 A2 3.750 ± .010 95.25 ± 0.25 A3 2.375 .010 60.32 0.25 ± ± A4 1.750 ± .010 44.45 ± 0.25 A5 5.750 .020 146.05 0.51 ± ± A6 .625 ± .020 15.8
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Specifications WD Enterprise WDE2170/WDE4360 Figure 2-2. 68-pin Drive Dimensions Table 2-5. 68-pin Drive Dimensions Dimension Inches Millimeters A1 4.000 ± .020 101.60 ± 0.51 A2 3.750 .010 95.25 0.25 ± ± A3 2.375 ± .010 60.32 ± 0.25 A4 1.750 ± .010 44.45 ± 0.25 A5 5.750 .020 146.05 0.51 ± ± A6 .625 ± .020 15.87 ± 0.51 A7 1.638 ± .010 41.60 ± 0.25 A8 1.787 ± .010 45.39 ± 0.25 A9 4.000 ± .010 101.60 ± 0.25 A10 .250 .010 6.35 0.25 ± ± A11 1.000 ±
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WD Enterprise WDE2170/WDE4360 Specifications Figure 2-3. 80-pin Drive Dimensions Table 2-6. 80-pin Drive Dimensions Dimension Inches Millimeters A1 4.000 ± .020 101.60 ± 0.51 A2 3.750 .010 95.25 0.25 ± ± A3 2.375 ± .010 60.32 ± 0.25 A4 1.750 ± .010 44.45 ± 0.25 A5 5.750 .020 146.05 0.51 ± ± A6 .625 ± .020 15.87 ± 0.51 A7 1.638 ± .010 41.60 ± 0.25 A8 1.787 ± .010 45.39 ± 0.25 A9 4.000 ± .010 101.60 ± 0.25 A10 .250 .010 6.35 0.25 ± ± A11 1.000 ±
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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. For instructions on installing the drive, including drive handling and mounting, refer to the WD Enterprise Installation Guide (document number 4079
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WD Enterprise WDE2170/WDE4360 Specifications 2.4. Electrical Specifications 2.4.1. Current Requirements and Power Dissipation Table 2-7. WDE2170 Current Requirements and Power Dissipation Operating Current Current Power Power Mode Population Mean + 4 Sigma Population Mean Pop Mean + 4 Sigma Population Mean 5 VDC 5 VDC 4 4 12 VDC 4 12 VDC 4 SE/Diff. SE/Diff. SE/Diff. SE/Diff. peak DC peak DC ___ ___ Spin-up 635/780 mA 580/760 mA 1.22A 1.15A Seek mean DC mean DC 645/795 mA 585/770 mA 7.65/8.70
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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 Spinup Peak AC Current 1.4 Spinup Peak DC Current 1.2 1.0 CU RREN T (Am ps) 0.8 0.6 0.4 0.2 0 0 1 2 3 4 5 6 7 8 9 10 TIM E (Seconds) WD E2170 Figure 2-6. WDE4360 +12V Current Profile 1.6 1.4 1.2 1.0 CU RRENT (A m ps) 0.8 0.6
