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Archiving using data obtained during backup of primary storage

  • US 10,338,823 B2
  • Filed: 07/31/2017
  • Issued: 07/02/2019
  • Est. Priority Date: 12/21/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • copying, during a backup of one or more non-volatile information stores of primary storage, metadata of a plurality of files stored in the one or more non-volatile information stores to an index, the metadata copied to the index including at least modification date data of each file of the plurality of files, wherein the backup comprises;

    identifying a first set of one or more files of the plurality of files for a backup operation based at least in part on a determination that the first set of one or more files were modified since a previous backup date, andperforming the backup operation on the first set of one or more files of the plurality of files, wherein the previous backup date indicates a date when modifications to files in the one or more non-volatile information stores were most recently copied to secondary storage;

    following the backup operation of the one or more non-volatile information stores, reviewing the metadata copied to the index during the backup to identify a second set of one or more files of the plurality of files that were last modified prior to a system archival date; and

    performing an archive operation on the second set of one or more files of the plurality of files, wherein the archive operation includes replacing a particular file of the second set of one or more files with an identifier indicating a location of one or more copies of the particular file in the secondary storage.

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