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| Appendix B: Hardware Specifications | |
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B.4. Fault Tolerance |
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| Specification | Feature |
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| Drive S.M.A.R.T. Support | Yes (with |
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| and replace, and perpetual clone functions) |
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| Battery | Yes | |
| Yes |
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| S.E.S. Support | Yes |
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| ISEMS (Infortrend Simple | Yes | |
| Enclosure Management |
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| Service) via I2C Interface |
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| Automatic Drive Failure | Yes |
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| Detection |
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| Automatic Rebuild on Spare | Yes | |
| Drives |
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| Regenerate Logical Drive | Yes | |
| Parity |
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| Bad Block Reassignment | Yes | |
| Automatic Rebuild upon | Yes |
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| Failed Drive Replacement |
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| Manual Clone of Suspected | Yes | |
| Failed Drive |
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| Concurrent Rebuild on | Yes | |
| Multiple Drives in a RAID |
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| (0+1) Logical Drive |
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| Salvage the Second | Yes | |
| Temporary Failed Drive in a |
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| RAID 1, 3 or 5 Logical |
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| Drive |
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| Salvage the First Temporary | Yes | |
| Failed Drive in a RAID 0 |
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| Logical Drive |
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| Variable Stripe Size | Optimization for sequential:128KB | |
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| Optimization for random: 32KB |
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| Table |
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Fault Tolerance |