QuickSpecs
HP StorageWorks DAT Drives
Technical Specifications
Shipping | N/A | 2.9 lb (1.3 kg) | 8.8 lb (4.0 kg) |
Shipping Array Module | 7.9 lb (3.6 kg) | 7.9 lb (3.6 kg) | 7.9 lb (3.6 kg) |
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Capacity | DAT 24 | DAT 40 | DAT 72 |
Native | 12 GB | 20 GB | 36 GB |
Compressed | 24 GB | 40 GB | 72GB |
(assumes 2:1data |
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compression) |
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Buffer Size (SCSI) | 2 MB | 8 MB | 8 MB |
Buffer Size (USB) | 8MB | 8MB | 8MB |
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Performance | DAT 24 | DAT 40 | DAT 72 |
Sustained Transfer Rate | >1.5 MB/s | 3.2 MB/s* | 3.2 MB/s* |
(native) |
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Where 1KB = 1,000 |
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Bytes |
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Sustained Transfer Rate | >3 MB/s | 6.4 MB/s* | 6.4 MB/s* |
(with 2:1 data |
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compression) |
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Where 1KB = 1,000 |
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Bytes |
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Burst Transfer Rate | 3 MB/s (asynchronous) | 6.4MB/s (asynchronous) | 6.4 MB/s (asynchronous) |
Where 1KB = 1,000 | 10 MB/s (synchronous) | 40 MB/s (synchronous) | 40 MB/s (synchronous) |
Bytes |
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Burst Transfer Rate | N/A | N/A | 6.4 MB/s (asynchronous) |
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| 160 MB/s (synchronous) | |
Where 1KB = 1,000 |
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Bytes |
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Burst Transfer Rate (USB | 6.4MB/s (asynchronous) | 6.4MB/s (asynchronous) | 6.4 MB/s (asynchronous) |
interface)Where 1KB = | 40 MB/s (synchronous) | 40 MB/s (synchronous) | 40 MB/s (synchronous) |
1,000 Bytes |
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Data Access Time | 40 s | 50 s | 68 s |
(SCSI) |
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Average Load Time | 14 s | 15 s | 15 s |
(SCSI) |
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Average Unload Time | 14 s | 15 s | 15 s |
(SCSI) |
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Rewind Time (SCSI) | 80 s (end to end) | 110 s (end to end) | 120 s (end to end) |
Rewind Tape Speed | 1.56 m/s | 1.41 m/s | 1.41 m/s |
(SCSI) |
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Data Access Time (USB) | 40 s | 50 s | 68 s |
Average Load Time | 15 s | 15 s | 15 s |
(USB) |
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Average Unload Time | 15 s | 15 s | 15 s |
(USB) |
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Rewind Time (USB) | 90 s (end to end) | 110 s (end to end) | 120 s (end to end) |
DA - 11883 Worldwide — Version 15 — March 20, 2006 | Page 25 |