×

Sequential access storage and data de-duplication

  • US 9,569,134 B2
  • Filed: 08/23/2010
  • Issued: 02/14/2017
  • Est. Priority Date: 08/23/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method, comprising:

  • producing an input sequence for acquiring, from a sequential access medium associated with a sequential access device, a set of unique data blocks associated with a data de-duplication application, where the set of unique data blocks are identified in one or more data reconstitution recipes, where the input sequence depends, at least in part, on the order in which the set of unique data blocks appear on the sequential access medium, where the input sequence is a sorted list of unique data blocks, where the sorted list is sorted in order from a unique data block that will be encountered first during a sequential read from the sequential access medium to the unique data block that will be encountered last during the sequential read from the sequential access medium,where the sequential access medium is configured with two partitions, where the sequential access medium stores one or more data de-duplication data structures in a first partition, and stores a repository of one or more unique data blocks associated with the data de-duplication data structures in a second partition, where the order of data structures in the partition storing the data de-duplication data structures is one of, index first and recipes second, and recipes first and index second, andcontrolling a data de-duplication computer to acquire the set of unique data blocks from the sequential access medium according to the input sequence, where the sequential access medium is linear tape, and where the sequential access device is a tape drive.

View all claims
  • 10 Assignments
Timeline View
Assignment View
    ×
    ×