| US 7,469,326 B1 | ||
| Promotion or demotion of backup data in a storage hierarchy based on significance and redundancy of the backup data | ||
| Daniel H. Hardman, American Fork, Utah (US) | ||
| Assigned to Symantec Corporation, Cupertino, Calif. (US) | ||
| Filed on Sep. 29, 2007, as Appl. No. 11/864,978. | ||
| Application 11/864978 is a continuation of application No. 11/220134, filed on Sep. 06, 2005, granted, now 7,392,356. | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01) | ||
| U.S. Cl. 711—162 [711/100; 711/161] | 19 Claims |
| 1. A computer-readable storage medium comprising one or more computer-readable instructions that, when executed by a computing
system, cause the computing system to perform a method for moving backup data within a storage hierarchy, the method comprising:
calculating uniqueness of backup data within a storage hierarchy by calculating a size of unique data in the backup data;
estimating a significance of at least a portion of the backup data based on a size of data in the backup data to quantify
a priority of the backup data;
identifying a target availability level for the backup data in a storage hierarchy based upon the calculated uniqueness of
the backup data and the estimated significance; and
moving the backup data from a source availability level to the identified target availability level in the storage hierarchy.
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