| Deskstar 7K250 models |
Capacity (GB) |
RPM |
Data buffer |
Interface |
|
| HDS722540VLAT20 |
| 40 |
7200 |
2 MB |
Parallel-ATA |
|
| HDS722580VLAT20 |
| 80 |
7200 |
2 MB |
Parallel-ATA |
|
| HDS722512VLAT20 |
| 120 |
7200 |
2 MB |
Parallel-ATA |
|
| HDS722512VLAT80 |
| 120 |
7200 |
8 MB |
Parallel-ATA |
|
| HDS722516VLAT20 |
| 160 |
7200 |
2 MB |
Parallel-ATA |
|
| HDS722516VLAT80 |
| 160 |
7200 |
8 MB |
Parallel-ATA |
|
| HDS722525VLAT80 |
| 250 or 2001 |
7200 |
8 MB |
Parallel-ATA |
|
| HDS722580VLSA80 |
|
| HDS722512VLSA80 |
|
| HDS722516VLSA80 |
|
| HDS722525VLSA80 |
|
| |
|
|
| Configuration |
Parallel-ATA |
Serial-ATA |
| |
|
|
| Interface |
ATA Ultra-100 |
Serial ATA 1.5Gb/s |
| Capacity (GB)2 |
250/200/160/120/80/40 |
250/160/120/80 |
| Sector size (bytes) |
512 |
512 |
| Recording zones |
30 |
30 |
| Data heads (physical) |
6/6/4/3/2/1 |
6/4/3/2 |
| Data disks |
3/3/2/2/1/1 |
3/2/2/1 |
| Max. areal density (Gbits/sq. inch) |
62 |
62 |
| Max. recording density (KBPI) |
689 |
689 |
| Track density (KTPI) |
93.5 (3 disk) |
93.5 (3 disk) |
| |
90 (2/1 disk) |
90 (2/1 disk) |
| |
87(1 disk) |
87 (1 disk) |
| |
|
|
| Performance |
|
|
| Data buffer3 |
8 MB/2 MB |
8 MB |
| |
(3D-8M,2D-2M/8M,1D-2M) |
|
| Rotational speed (rpm) |
7,200 |
7,200 |
| Latency average (ms) |
4.17 |
4.17 |
| Media transfer rate (max. Mbits/sec) |
757 |
757 |
| Interface transfer rate (max. MB/sec) |
100 |
150 |
| Sustained data rate (MB/sec) |
61.4 -29.7 (zone 0-29) |
61.4 -29.7 (zone 0-29) |
| |
|
|
| Seek time (read, typical)4 |
|
|
| Average (ms) |
8.5/8.8 (1 disk) |
8.5/8.8 (1 disk) |
| Track to track (ms) |
1.1 |
1.1 |
| Full track (ms) |
15.1 |
15.1 |
| |
|
|
| Reliability |
|
|
| Error rate (non-recoverable) |
1 in 10E14 |
1 in 10E14 |
| Start/stops (at 40° C) |
50K |
50K |
| |
|
|
| Acoustic |
|
|
| Idle (Bels) |
3.0 (3 disks) |
3.0 (3 disks) |
| |
2.8 (2 disks) |
2.8 (2 disks) |
| |
2.6 (1 disk) |
2.6 (1 disk) |
| |
|
|
| Power |
|
|
| Requirement |
+5 VDC (+/- 5%), +12 VDC (+10%/-8%) |
Same as Parallel-ATA |
| Dissipation |
|
|
| Startup current (max. A) |
1.72 (+12V) & 068 (+5V) |
1.72 (+12V) & 068 (+5V) |
| Idle (W) |
7.0 (3 disks) |
7.6 (3 disks) |
| |
5.9 (2 disks) |
6.5 (2 disks) |
| |
5.0 (1 disk) |
5.6 (1 disk) |
| |
|
|
| Physical size |
|
|
| Height (mm) |
25.4 |
25.4 |
| Width (mm) |
101.6 |
101.6 |
| Depth (mm) |
146 |
146 |
| Weight (max. g) |
640 |
640 |
| |
|
|
| Environmental characteristics |
|
|
| Operating |
|
|
| Ambient temperature |
5° to 55° C |
5° to 55° C |
| Relative humidity (non-condensing) |
8% to 90% |
8% to 90% |
| Max. wet bulb (non-condensing) |
29.4° C |
29.4° C |
| Shock (half sine wave, 2ms) |
55G |
55G |
| Vibration (random (RMS) |
0.67G for horizontal, 0.56G for vertical |
0.67G for horizontal, 0.56G for vertical |
| |
|
|
| Non-operating |
|
|
| Ambient temperature |
-40° to 65° C |
-40° to 65° C |
| Relative humidity (non-condensing) |
5% to 95% |
5% to 95% |
| Max. wet bulb (non-condensing) |
35° C |
35° C |
| Shock (half sine wave, 2ms) |
350G (2/1 disks) |
350G (2/1 disks) |
| Vibration (random (RMS) |
1.04G rms (XYZ) |
1.04G rms (XYZ). |
