Chapter 5 | Specifications |
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Mean Time Between Failures |
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Table 10 | Reliability |
| Specification | Description |
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| Less than 1 in 1017 bits | |
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| rate |
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| Error recovery and | • Error correction code techniques |
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| control | (C1 and C2 ECC) |
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| • |
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| • Error monitoring and reporting (error log) |
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| • Retry on |
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| Mean time between | 250,000 hours MTBF at 100% duty cycle: |
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| failures (MTBF) | power applied and tape moving continuously |
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| (Desktop drive; 50,000 hours at full load and |
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| 25°C) |
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| Cartridge load/ | 300,000 cartridge load/unload cycles (no |
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| unload | thread) |
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| Mean time to replace | Less than 30 minutes |
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| (MTTR) |
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Mean Time Between Failures
The mean time between failures (MTBF) for the internal drive is specified at 250,000 hours minimum. This specification includes all
The MTBF for the desktop drive power supply is 50,000 hours with the unit operated at full load and 25°C.
Note: The MTBF rating does not represent any particular drive, but is derived from a large database of test samples. Actual rates may vary from unit to unit.
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