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Data Backup

This article describes the DSS data backup policy.

Summary

  • DSS IT regularly backs up data that is stored on all of our DSS server infrastucture, including all data stored on DSS file servers.
  • DSS IT does not provide backup services for desktop or laptop computers, or for mobile devices.
  • DSS IT does not provide backup services for individual file servers, such as lab servers.
  • We strongly recommend that you store any critical, current data on file servers.
  • For backup of desktops, laptops and mobile devices, please see our recommendations.
  • To request restoration of backed up data, please submit a service request online.

Details

The DSS IT backup system is disk-to-disk-to-tape, meaning that servers are initially backed up to staging disks, then snapshots from the staging disks are sent to tapes.

The retention policy for data stored on DSS file services is:

  • Daily backups to disk are stored for 1 week.
  • Weekly backups to tape are stored for 1 month.
  • Monthly backups to tape are stored for 1 year.
  • Annual backups to tape are stored indefinitely.

Tape backups are moved off-site weekly (meaning that they are stored separately from the servers and disk backups).

Restoration of data from accidental deletions or for "roll-back" to previous versions for the past week (7 calendar days days) will be done at no cost. Restoration from tape archives may incur a cost.

The retention policy for backups from the DSS virtualization infrastructure is:

  • Nightly backups to disk are stored for 1 week.
  • Weekly backups to disk are stored for 1 month, weekly backups to tape are stored off-site for 1 month.
  • Monthly backups to tape are stored off-site for 3 months.