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Automated file error classification and correction in a hierarchical storage management system

  • US 6,023,709 A
  • Filed: 12/15/1997
  • Issued: 02/08/2000
  • Est. Priority Date: 12/15/1997
  • Status: Expired due to Term
First Claim
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1. A method to diagnose and handle an error in an automated hierarchical storage management system, comprising:

  • a) processing a host request for an access operation on a first file in a first storage device with a server to determine whether the first file is resident in the first storage device;

    b) initiating a recall with the server of a second file in a second storage device corresponding to the first file upon determining that the first file is not resident in the first storage device;

    c) copying the second file from the second storage device to the first file in the first storage device upon determining that the second file is accessible;

    d) determining whether the recall of the second file in the second storage device has failed;

    e) initiating a process to check a table in a memory within the server to determine information indicating operations to perform if the recall of the second file failed; and

    f) notifying the server to retry the access operation after performing the operations.

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