Error detection/correction and fault detection/recovery – Pulse or data error handling – Digital data error correction
Reexamination Certificate
2008-03-18
2008-03-18
Wong, Don (Department: 2163)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Digital data error correction
C714S005110, C714S006130, C714S766000
Reexamination Certificate
active
07346831
ABSTRACT:
A parity assignment technique enables parity declustering in a large, balanced parity (“super-stripe”) array of a storage system. The balanced array may be constructed by combining a plurality of unbalanced parity stripe arrays, each having parity blocks on a set of storage devices, such as disks, that are disjoint from the set of disks storing the data blocks. The technique distributes the assignment of disks to parity groups among the combined super-stripe array such that all disks contain the same amount of data or parity information. Moreover, the technique ensures that all surviving data disks of the array are loaded uniformly during a reconstruction phase after a single or double disk failure.
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Cesari and McKenna LLP
Network Appliance Inc.
Thai Hanh
Wong Don
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