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Disk array controller and information processing apparatus

  • US 20050229033A1
  • Filed: 03/24/2005
  • Published: 10/13/2005
  • Est. Priority Date: 04/01/2004
  • Status: Abandoned Application
First Claim
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1. A disk array controller which controls a disk array to change a redundancy level of the disk array, comprising:

  • a read unit which reads a data block to be relocated from the disk array, a determining unit which determines whether an error has occurred in the to-be-relocated data block read by the read unit, a write unit which writes the to-be-relocated data block read by the read unit in a relocating destination position on the disk array which corresponds to the to-be-relocated data block when the determining unit determines that the error has not occurred in the to-be-relocated data block, and an error information setting unit configured to set error information with respect to the relocating destination position if the determining unit determines that the error has occurred in the to-be-relocated data block, the error information causing occurrence of an error in response to read access of the relocating destination position.

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