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Method and system for recovery of meta data in a storage controller

  • US 6,988,171 B2
  • Filed: 05/09/2002
  • Issued: 01/17/2006
  • Est. Priority Date: 03/03/1999
  • Status: Expired due to Fees
First Claim
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1. A method for processing modified meta data for data recovery operations, wherein the meta data provides information on customer data maintained in a storage device, comprising:

  • determining whether meta data tracks maintained in a cache were modified;

    indicating in a non-volatile memory that the determined meta data tracks were modified;

    initiating a data recovery operation in response to a system failure; and

    processing the non-volatile memory and the indications of modified meta data tracks therein to mark as invalid lost meta data tracks in cache to subsequently rebuild the lost metadata tracks during the data recovery operation.

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