|
Specifications for the WD Enterprise WDE9180 SCSI Hard
Drive
| Standard Models |
| Model Numbers |
Interface |
Cache |
| WDE9180-0048 |
Ultra / Ultra2 SCSI 68-pin |
2 MB |
| WDE9180-0049 |
Ultra / Ultra2 SCSI 80-pin |
2 MB |
| AV Optimized Models |
| Model Numbers |
Interface |
Cache |
| WDE9180-AV0038 |
Ultra / Ultra2 SCSI 68-pin |
4 MB |
|
WDE9180-AV0039 |
Ultra / Ultra2 SCSI 80-pin |
4 MB |
| Physical
Specifications |
| Formatted Capacity* |
9,180 MB |
| Interfaces |
Ultra2 LVD, Ultra LVD Wide
(68-pin)
(80-pin)
Ultra Fast, Ultra Fast Wide
(68-pin)
(80-pin) |
| Media Type |
Thin Film |
| Head Type |
MR |
| Servo Type |
Embedded |
| Number of Disks |
3 |
| Number of Data Surfaces |
6 |
| Number of Heads |
6 |
| Bytes per Sector |
512 |
| Tracks per Inch |
10,750 |
| Bits per Inch (000) |
208.8 (ID), 180,42 (OD) |
| Areal Density |
2.24 Gb/in2 |
| Capacity/Platter |
3.0 GB/in2 |
| Total Cylinders |
10,601 |
| Zones per Surface |
16 |
| Recording Method |
0,6,8 EPR4 |
| ECC |
240-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 |
30 MB/s max
80 MB/s max |
Average Seek
- Read
- Write |
6.9 ms
7.9 ms |
Track to Track Seek
- Read
- Write |
0.8 ms
0.8 ms |
Full Stroke Seek
- Read
- Write |
16 ms
17 ms |
| Average Latency |
4.17 ms (nominal) |
| Rotational Speed |
7200 RPM (nominal) |
| Buffer Size |
2 MB, 4 MB |
| Error Rate (Non-Recoverable) |
<1 in 1014 bits read |
| Spindle Start Time |
<20s 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:
1.43 pounds (±0.14 pounds)
Metric:
0.65 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 |
1.14 A |
Peak DC
1.65 A |
0.98 A |
|
|
| Seek 50 ops/s |
0.86 A |
1.07 A |
0.68 A |
1.00 A |
11.8 W |
10.8 W |
| Idle |
0.63 A |
1.00 A |
0.48 A |
0.97 A |
12.5 W |
10.6 W |
| Read/Write |
0.94 A |
1.05 A |
0.78 A |
1.00 A |
16.5 W |
14.3 W |
| Input Voltage Requirements |
| +5.0V (±5%) and 12.0V (±5%) |
| Ripple |
| |
+12 VDC |
+5 VDC |
| Maximum |
Start: 400 mV (peak to peak)
Run: 250 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 m half-sine wave)
Non-operating
120 G (2 m half-sine wave)
Non-operating Rotational Shock
10,000 rad/s2 (3 ms half-sine wave) |
| Vibration |
Operating
10-300 Hz, 1.0 G - 0.5 oct/min
Non-operating
5-400 Hz, 2.0 G - 0.5 oct/min |
| 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 65ºC (-40ºF to 149ºF)
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**
3.9 A-weighted bels (typical)
4.1 A-weighted bels (maximum)
Seek Mode
4.9 A-weighted bels (typical)
5.2 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. |
