IBM 33P3378 SCSI Hard Drives
Capacity: 73GB
Spindle Speed: 15,000RPM
Interface Type: SCSI 68pin / HD68 Female
Disk Size: 3.5″x1.0″ (LFF Hard Drive)
Sustained Throughput (MBps): 93 – 118
Average Seek Time (read/write ms): 3.3 / 3.8
Electrical Interface Speed: SCSI LVD U320 – 320MBps 16-bit
On-Board Cache: 8MB
- 15,000-rpm HDDs – Deliver solid reliability and the highest level of performance in our line
- Ultra320 SCSI interface – Provides wide bandwidth for multi-drive, concurrent, streaming data transfers
- 1-inch, slim-line form factor – Optimizes storage capacity of supported systems
- Predictive Failure Analysis (PFA) – Can alert you of a problem before it occurs
- Rigorous testing in heavy network simulation test suites
- Available in hot swap and standard versions:
- 68-pin standard drive – Supports xSeries servers and IntelliStation workstations without hot swap drive bays
IBM Part #s: 33P3378 / 32P0785 / 24P3727 / 71P7445
Functional Specifications | |||||
Capacity (formatted) | 73.5 GB | ||||
Disks/heads | 4/8 | ||||
Disk media diameter | 2.75 in. | ||||
Bytes/sector | 512 | ||||
Cylinders | 27,100 | ||||
Logical blocks | 143,552,136 | ||||
Recording density | 580,000 BPI | ||||
Track density | 60,000 TPI | ||||
Buffer size | 8192 KB | ||||
Interface | Ultra320 SCSI (68 pin) | ||||
Seek time | Track to track | Read: 0.3 ms (typ) / Write: 0.5 ms (typ) | |||
Average | Read: 3.3 ms (typ) / Write: 3.8 ms (typ) | ||||
Full stroke | Read: 8.0 ms (typ) / Write: 9.0 ms (typ) | ||||
Data transfer rate | To/from media | 93.1 to 118.2 MB/s | |||
To/from host | Ultra320 SCSI – 320 MB/s (max.) | ||||
Start time | 30 s (typ) | ||||
Stop time | 30 s (typ) | ||||
Rotational speed (RPM) | 15,000 | ||||
Average latency | 2.00 ms | ||||
Power consumption, idle | 11.3 W | ||||
Spindle motor | FDB (Fluid Dynamic Bearings) | ||||
Physical Specifications | |||||
Power requirements | Idle (ready) | 11.3 W (typ) | |||
Spin-up | 12V @ 2.5 A 5V @ 0.85 A |
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Dimensions | Height | 25.4 mm (1.0 in.) | |||
Width | 101.6 mm (4.0 in.) | ||||
Depth | 146.0 mm (5.75 in.) | ||||
Weight | 0.80 kg (1.76 lb.) | ||||
Drive temperature | Operating | 5°C to 55°C | |||
Non-operating | -40°C to 70°C | ||||
Gradient | 15°C/H max | ||||
Relative humidity | Operating | 5% to 95% (non-condensing) | |||
Non-operating | 5% to 95% (non-condensing, with packaging) | ||||
Vibration | Operating | 1.0 G (20 to 300 Hz) | |||
Non-operating | 5.0 G (20 to 300 Hz) | ||||
Shock | Operating | 65 G (half-sine pulse, 2 ms duration) Rotational – 25,000 rad/sec2. @ 2 ms. |
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Non-operating | 250 G (half-sine pulse, 2 ms duration) | ||||
Altitude | Operating | -984 to 9,843 ft. | |||
Non-operating | -984 to 39,370 ft. | ||||
Acoustics | Idle | < 3.6 bels | |||
Reliability Specifications | |||||
MTBF | 1,200,000 hours | ||||
MTTR | No field repairable parts, return to factory for repair. | ||||
Start/stop cycles | 20,000 cycles | ||||
Error Rate | Seek error | 10 per 108 seeks | |||
Non-recoverable read error | 1 per 1015 bits read |
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