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Specifications



western digital wde9100-0007 picture.
western digital wde9100-0007 picture.
western digital wde9100-0007 picture.

Western Digital WDE9100-0007 Specifications
Model Capacity Size Height Bus Type Int.Type
WDE9100-0007 Enterprise 9105MB 3.5" SL SCSI3  SE

Specifications for the WD Enterprise WDE9100 Ultra SCSI Hard Drive

Standard Models
Model
Numbers
Interface Cache
WDE9100-0003 Ultra-SCSI Single-ended 50-pin Narrow 512 KB
WDE9100-0007 Ultra-SCSI Single-ended 68-pin Wide 512 KB
WDE9100-0008 Ultra-SCSI Single-ended 80-pin Wide 512 KB

AV Optimized Models
Model Numbers Interface Cache
WDE9100-AV0016 Ultra-SCSI / Ultra2 SCSI 68-pin 1 MB
WDE9100-AV0017 Ultra-SCSI / Ultra2 SCSI 80-pin 1 MB

Physical Specifications
Formatted Capacity* 9,105 MB
Interfaces Ultra Fast SCSI
(50-pin)
Ultra Fast Wide
(68-pin)
(80-pin SCA-2)
Media Type Thin Film
Head Type MR
Servo Type Embedded
Number of Disks 6
Number of Data Surfaces 12
Number of Heads 12
Bytes per Sector 512
Tracks per Inch 7500
Bits per Inch (000) 146 (ID), 121 (OD)
Areal Density 1.10 Gb/in2
Total Cylinders 6,932
Zones per Surface 16
User Sectors/Track (512 bytes) 260 (OD), 160 (ID)
Recording Method 0,4,4 RLL
ECC 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


Performance Specifications
Data Transfer Rate
- Media to Buffer
- Buffer to Host
- Sustained Audio/Video

20 MB/s max
40 MB/s max
8.1 MB/s max
Average Seek
- Read
- Write

7.9 ms
9.0 ms
Track to Track Seek
- Read
- Write

0.8 ms
0.8 ms
Full Stroke Seek
- Read
- Write

17 ms
18 ms
Average Latency 4.17 ms (nominal)
Rotational Speed 7200 RPM (nominal)
Buffer Size 512 KB (1MB optional)
Error Rate (Non-Recoverable) <1 in 1014 bits read
Spindle Start Time <30s to ready
Spindle Stop Time <20s
Contact Start/Stop Cycles (CSS) 20,000

Physical Dimensions
Height English:
1.0 inch (±0.02 inch)

Metric:
25.4 mm (±0.51 mm)
Length English:
5.75 inches (±0.02 inch)

Metric:
146.05 mm (±0.51 mm)
Width English:
4.00 inches (±0.01 inch)

Metric:
101.6 mm (±0.25 mm)
Weight English:
1.3 pounds (±0.13 pounds)

Metric:
0.59 kg (±0.06 kg)

Electrical Specifications
Current Requirements and Power Dissipation
Operating Mode Current Population
Mean + 4 Sigma
Current Population
Mean
Power Pop
Mean + 4
Sigma
Power
Population
Mean
  12 VDC 5 VDC 12 VDC 5 VDC    

Spinup

2.0 A

0.74 A
Peak DC
1.65 A

0.71 A
   
Seek 50 ops/s 0.78 A 0.87 A 0.68 A 0.77 A 13.7 W 12.2 W
Idle 0.54 A 0.85 A 0.47 A 0.75 A 10.7 W 9.4 W
Read/Write 0.78 A 0.89 A 0.68 A 0.79 A 13.8 W 12.1 W
Input Voltage Requirements
+5.0V (±5%) and 12.0V (±10%)
Ripple
  +12 VDC +5 VDC
Maximum Start: 400 mV (peak to peak)
Run: 150 mV (peak to peak)
100 mV (peak to peak)
Frequency 60 Hz - 20 MHz 60 Hz - 20 MHz

Environmental Specifications*
Shock: Operating
10 G (2 shocks per second maximum)

Non-operating
70 G (3 shocks per axis maximum)

Non-operating Rotational Shock
10,000 rad/s2
Vibration Operating
10-300 Hz, 1.0 G - 0.25 oct/min

Non-operating
5-20 Hz, 0.098 inch (peak to peak) - 1.0 oct/min
20-400 Hz, 2.0G (0 to peak)
Operating Temperature and Humidity Temperature
5ºC to 55ºC (41ºF to 131ºF)

Humidity
10-90% RH non-condensing
33°C (maximum wet bulb)

Thermal Gradient
10°C/hour (maximum)
Non-Operating Temperature and Humidity Temperature
-40ºC to 60ºC (-40ºF to 140ºF)

Humidity
5-95% RH non-condensing
33°C (maximum wet bulb)

Thermal Gradient
20°C/hour (maximum)
Altitude Operating
-1,000 feet to 10,000 feet (-300 M to 3,000 M)

Non-Operating
-1,000 feet to 40,000 feet (-300 M to 12,000 M)
Acoustics Idle Mode**
4.0 A-weighted bels (typical)
4.3 A-weighted bels (maximum)

Seek Mode
5.3 A-weighted bels (typical)
5.5 A-weighted bels (maximum)
Reliability MTBF
1,000,000 Power On Hours

Service Life
5 years

* No non-recoverable errors during operating tests or after non-operating tests.

** Sound power level.


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