| Technical Specifications |
|
|
| Description |
|
| Model number |
ST336754LC |
| Model Name |
Cheetah 15K.4 |
| Form Factor(width) |
3.5-inch |
| Form Factor(height) |
1-inch |
|
| Physical Specifications |
|
| Height |
25.4 mm |
| Width |
101.6 mm |
| Length |
146.05 mm |
| Weight |
0.68 kg |
|
| Capacity/Interface |
|
| Formatted Capacity |
36.7 Gbytes |
| Interface Type |
80-pin |
|
| Performance |
|
| Transfer Rates |
|
|
| Internal Transfer Rate (min) |
685 Mbits/sec |
| Internal Transfer Rate (max) |
1,142 Mbits/sec |
| Formatted Int Transfer Rate (min) |
85 MBytes/sec |
| Formatted Int Transfer Rate (max) |
142 MBytes/sec |
| External (I/O) Transfer Rate (max) |
320 MBytes/sec |
| Seek Times |
|
|
| Average Seek Time, Read |
3.5 msec typical |
| Average Seek Time, Write |
4 msec typical |
| Track-to-Track Seek, Read |
0.2 msec typical |
| Track-to-Track Seek, Write |
0.4 msec typical |
| Full Disc Seek, Read |
7.4 msec typical |
| Full Disc Seek, Write |
7.9 msec typical |
| Average Latency |
2 msec |
| Other |
|
|
| Default Buffer (cache) Size |
8,192 Kbytes |
| Spindle Speed |
15K RPM |
| Spinup Time |
20 sec |
| Power-on to Ready Time |
3 sec |
|
| Configuration |
|
| Number of Discs (physical) |
1 |
| Number of Heads (physical) |
2 |
| Total Cylinders |
50,864 |
| Bytes Per Sector |
512 |
| Track Density (TPI) |
85,000 tracks/inch |
| Recording Density (BPI, max) |
628,000 bits/inch |
| Bytes/Track (avg) |
471,916 |
| Recording Components |
|
|
|
| Electrical Requirements |
|
| Current |
|
|
| Typical Current (12VDC +/- 5%) |
0.74 amps |
| Startup Current (12VDC +/- 5%) |
2.46 amps |
| Typical Current (5VDC +/- 5%) |
0.59 amps |
| Startup Current (5VDC +/- 5%) |
1.08 amps |
| Power |
|
|
| Idle Power (typ) |
7.92 watts |
|
| Environmental Specifications |
|
| Shock and Vibration |
|
|
| Max Operating Shock (2-msec) |
60 Gs |
| Max Nonoperating Shock (2-msec) |
250 Gs |
| Operating Vibration (max) |
0.5 Gs |
| Nonoperating Vibration (max) |
2 Gs |
| Temperature and Humidity |
|
|
| Operating Temperature (max) |
50 deg C |
| Operating Temperature (min) |
5 deg C |
| Nonoperating Temperature (max) |
70 deg C |
| Nonoperating Temperature (min) |
-40 deg C |
| Operating Temperature Change (max) |
20 deg C/hr |
| Nonoperating Temperature Change (max) |
20 deg C/hr |
| Operating Humidity (max) |
95 percent |
| Nonoperating Humidity (max) |
95 percent |
| Operating Humidity Change (max) |
20 percent per hour |
| Operating Wet Bulb Temp (max) |
28 deg C |
| Altitude |
|
|
| Operating Altitude (max) |
3,048 m |
| Operating Altitude (min) |
-305 m |
| Nonoperating Altitude (max) |
12,210 m |
| Nonoperating Altitude (min) |
-305 m |
| Acoustics |
|
|
| Acoustics, Idle (sound power, typ) |
3.6 Bels |
|
| Reliability |
|
| MTBF (Hours) |
1,400,000 hours |
| Recoverable Read Errors |
10 per 1012 bits read |
| Nonrecoverable Read Errors |
1 per 1015 bits read |
| Supports S.M.A.R.T. |
Yes |
|
|
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