Storage apparatus and failure recovery method

Details Storage apparatus and failure recovery method Storage apparatus and failure recovery method

2008-07-23

2011-10-04

Song, Jasmine (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C714S002000, C714S006220

Reexamination Certificate

active

08032703

ABSTRACT:
Proposed are a storage apparatus and a failure recovery method capable of performing failure recovery processing while reducing performance deterioration. Whether user data is written into a storage area provided by multiple storage mediums is managed for each stripe. When any one of the storage mediums is blocked due to a failure, correction copy processing is executed to the stripe written with the user data in preference to the stripe not written with the user data in a storage area provided by the multiple storage mediums, and correction copy processing is executed to the stripe not written with the user data in a storage area provided by the multiple storage mediums during spare time.

REFERENCES:
patent: 2002/0073279 (2002-06-01), Sasamoto et al.
patent: 2003/0105921 (2003-06-01), Tomita
patent: 2006/0117216 (2006-06-01), Ikeuchi et al.
patent: 2002-175158 (2000-12-01), None
patent: 2003-167690 (2001-11-01), None

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