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Appendix B: Hardware Specifications
Fault Tolerance B-3
B.4. Fault Tolerance
Specification Feature
Drive S.M.A.R.T. Support Yes (with user-configurable detect only, clone
and replace, and perpetual clone functions)
Battery Back-up Option Yes
SAF-TE Support Yes
S.E.S. Support Yes
ISEMS (Infortrend Simple
Enclosure Management
Service) via I
2
C Interface
Yes
Automatic Drive Failure
Detection
Yes
Automatic Rebuild on Spare
Drives
Yes
Regenerate Logical Drive
Parity
Yes
Bad Block Reassignment Yes
Automatic Rebuild upon
Failed Drive Replacement
Yes
Manual Clone of Suspected
Failed Drive
Yes
Concurrent Rebuild on
Multiple Drives in a RAID
(0+1) Logical Drive
Yes
Salvage the Second
Temporary Failed Drive in a
RAID 1, 3 or 5 Logical
Drive
Yes
Salvage the First Temporary
Failed Drive in a RAID 0
Logical Drive
Yes
Variable Stripe Size Optimization for sequential:128KB
Optimization for random: 32KB
Table B-4: Fault Tolerance