Lost writes detection in a redundancy group based on RAID...

Details Lost writes detection in a redundancy group based on RAID... Lost writes detection in a redundancy group based on RAID...

2005-04-29

2009-06-23

Beausolel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07552357

ABSTRACT:
A storage server stores data in a redundancy group of mass storage devices according to a data redundancy scheme. The redundancy scheme enables reconstruction of all data stored in the redundancy group if N or fewer mass storage devices in the redundancy group contain erroneous data, where N is at least 2. In response to determining that the redundancy group contains erroneous data, N−1 mass storage devices in the redundancy group can be specifically identified as containing the erroneous data.

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