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System and method for extended media retention

  • US 10,162,712 B2
  • Filed: 06/10/2013
  • Issued: 12/25/2018
  • Est. Priority Date: 04/03/2003
  • Status: Active Grant
First Claim
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1. A computer-implemented method, comprising:

  • storing a full backup and one or more incremental backups of a data set including multiple data elements to a removable storage media device;

    for each full backup and each of the one or more incremental backups stored on the removable storage media device;

    obtaining, with a storage manager, a set of aging preferences, wherein the set of aging preferences define periods of retention for multiple data elements of the full backup and multiple data elements of each of the one or more incremental backups stored on the removable storage media device;

    retrieving, with the storage manager, index data indicating a respective date of creation of the multiple data elements of the full backup or the multiple data elements of the one or more incremental backups;

    comparing the retrieved index data with the obtained set of aging preferences;

    determining that dates of creation of the multiple data elements of the full backup or the multiple data elements of the one or more incremental backups exceed the period of retention based on the comparison; and

    returning the removable storage media device to a scratch pool after the dates of creation of the multiple data elements of the full backup and the multiple data elements of the one or more incremental backups exceed the respective period of retention,wherein the scratch pool includes a set of removable storage media devices to be overwritten, andwherein returning the removable storage media device to the scratch pool includes deleting the data elements of the data set stored by the removable storage media device.

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