Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-09-27
2010-06-22
Chu, Gabriel L (Department: 2114)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S006130
Reexamination Certificate
active
07743276
ABSTRACT:
Embodiments of the present invention are directed to methods, and distributed data-storage systems employing the methods, for recovering redundancy within a distributed data-storage system upon failure of one or more mass-storage devices within a component data-storage system of the distributed data-storage system. In certain embodiments, failure of a mass-storage device within a component data-storage system elicits a redundancy-recovery operation in which segments affected by the mass-storage-device failure or failures are moved, by a process referred to as “migration,” to other component data-storage systems of the distributed data-storage system, and are recovered as a by-product of migration. Certain embodiments of the present invention more efficiently address redundancy recovery by moving only as many segments from the component data-storage system as needed to provide sufficient free space within the component data-storage system to recover the remaining segments affected by the mass-storage-device failure or failures within the component data-storage system.
REFERENCES:
patent: 5542065 (1996-07-01), Burkes et al.
patent: 5666512 (1997-09-01), Nelson et al.
patent: 5790886 (1998-08-01), Allen
patent: 6820182 (2004-11-01), Bauman et al.
patent: 6880101 (2005-04-01), Golasky et al.
patent: 7386666 (2008-06-01), Beauchamp et al.
Saito et al., “FAB: Building Distributed Enterprise Disk Arrays from Commodity Components,” Oct. 9-13, 2004, ASPLOS '04, pp. 48-58.
Jackson James P.
Jacobson Michael B.
Chu Gabriel L
Hewlett--Packard Development Company, L.P.
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