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METHOD FOR MANAGING RETENTION OF DATA ON WORM DISK MEDIA BASED ON EVENT NOTIFICATION

  • US 20090125572A1
  • Filed: 11/14/2007
  • Published: 05/14/2009
  • Est. Priority Date: 11/14/2007
  • Status: Abandoned Application
First Claim
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1. A method in a computer system for managing retention of data on WORM disk media, comprising:

  • establishing a volume retention period for securely storing data on a file volume on the WORM disk media;

    establishing a volume reclamation period to occur immediately after the volume retention period for reclaiming unexpired files within the file volume;

    establishing a volume retention extension period for extending the volume retention period;

    utilizing the file volume, including retaining files within the file volume for the duration of the volume retention period;

    determining during the volume reclamation period whether the amount of reclaimable space on the file volume is greater than a predefined reclamation threshold value;

    extending the volume retention period of the file volume by the volume retention extension period if the amount of reclaimable space on the file volume is not greater than the predefined reclamation threshold value; and

    reclaiming the file volume if the amount of reclaimable space on the file volume is greater than the predefined reclamation threshold value, including moving each unexpired file contained within the file volume to a target file volume on the WORM disk media and extending the volume retention period of the target file volume to the longer of a remaining retention period of each unexpired file and the length of the retention extension period.

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