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Using file system information in RAID data reconstruction and migration

  • US 20030237019A1
  • Filed: 06/24/2002
  • Published: 12/25/2003
  • Est. Priority Date: 06/24/2002
  • Status: Active Grant
First Claim
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1. A method including identifying a first group of data blocks, said first group including a block capable of maintaining redundant information associated with said data blocks;

  • determining if there is a failed data block in said first group;

    in response to a result of said determining operation, reconstructing data from said failed data block and determining whether to send said data to a data block associated with a second group, said second group having at least one non-failed data block;

    logically setting said failed data block in said first group to a selected value, whereby later calculation of said redundant information for said first group can proceed without reconstructing said data.

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