Disk selection method, raid control device, raid system, and its disk device

A response of a disk device during rebuild can be sped up. A disk array control device determines whether or not there is a normal read request during rebuild. If there is a read request during rebuild, data is read by sequentially switching a plurality of disk devices in a certain block size unit l...

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Bibliographische Detailangaben
Hauptverfasser: Daikokuya, Hidejiro, Ito, Mikio, Ikeuchi, Kazuhiko
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A response of a disk device during rebuild can be sped up. A disk array control device determines whether or not there is a normal read request during rebuild. If there is a read request during rebuild, data is read by sequentially switching a plurality of disk devices in a certain block size unit lower than a block size in which each disk device reads data during normal read.