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Dynamic disk space management by multiple database server instances in a cluster configuration

  • US 20030220951A1
  • Filed: 05/08/2003
  • Published: 11/27/2003
  • Est. Priority Date: 05/24/2002
  • Status: Active Grant
First Claim
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1. A method of managing disk space, the method comprising:

  • determining whether at least one bitmap block satisfies a first set of one or more criteria;

    if at least one bitmap block satisfies said first set of one or more criteria, then, based on information that is indicated in a bitmap block that satisfies said first set of one or more criteria, allocating disk space for use by a first server instance; and

    if no bitmap block satisfies said first set of one or more criteria, then performing the steps of;

    determining whether at least one bitmap block satisfies a second set of one or more criteria; and

    if at least one bitmap block satisfies said second set of one or more criteria, then performing the steps of;

    causing a particular bitmap block, that is associated with a second server instance and that satisfies said second set of one or more criteria, to be associated with said first server instance instead of said second server instance; and

    based on information that is indicated in said particular bitmap block, allocating disk space for use by said first server instance.

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