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Using backup and standby service for SnapVault

You can set up SnapMirror to protect a SnapVault secondary system.

Steps

  1. Use the license command to confirm that the SnapVault secondary storage device has both SnapVault secondary storage and SnapMirror features licensed.
  2. Use the license command to confirm that the SnapMirror destination device has both the SnapVault secondary storage and SnapMirror features licensed.
  3. Set up SnapMirror replication from the active SnapVault secondary system to a disk-based destination device (another system or NearStore system).
  4. If the active SnapVault secondary system is damaged or destroyed, convert the SnapMirror destination device to an alternate SnapVault secondary system to carry on the task of backing up data from the primary system.
    Example
    You have the following configuration: systemA (primary) has a SnapVault backup to systemB (secondary) and systemB has a SnapMirror backup to systemC (tertiary). If systemB fails, break the SnapMirror backup between systemB and systemC, and re-create the SnapVault relationship such that systemA has a SnapVault backup to systemC.
  5. After evaluating the reason for the data loss or corruption, either return the secondary system to the path as a tertiary system or add a new system as tertiary storage.
    After adding systemB, you have the following configuration: systemA (primary) has a SnapVault backup to systemC (secondary) and systemC has a SnapMirror backup to systemB (tertiary). If you added a new system, it would replace systemB in the configuration.
  6. As an optional step, you might want to return the systems to their original configuration.