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RAID CONFIGURATION MANAGEMENT DEVICE AND RAID CONFIGURATION MANAGEMENT METHOD

  • US 20150121002A1
  • Filed: 09/22/2014
  • Published: 04/30/2015
  • Est. Priority Date: 10/24/2013
  • Status: Active Grant
First Claim
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1. A RAID configuration management device that manages a RAID configuration that is constituted by a plurality of drives, the RAID configuration management device comprising:

  • a monitoring unit that monitors unmount and mount of each drive of the RAID configuration;

    a writing manager that manages a write request for writing data to a drive that is unmounted;

    a determination unit that, when the monitoring unit detects mount of a drive of the RAID configuration, makes a determination on consistency of the data of the drive in which mount is detected on the basis of the write request that is managed by the writing manager; and

    an incorporating unit that, when the determination unit determines that the data lacks consistency, performs processing for recovering data expected to be written by the write request that is issued to the drive in which mount is detected while the drive is unmounted and incorporates the drive in an original RAID configuration.

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