Skip to main content
We are redesigning the NetApp Knowledge Base site to make it easier to use and navigate. The new and improved site will be available the first week of October. Check out our video or read this KB article to know more about changes you’ll see on the site.
NetApp Knowledge Base

How retention in SCE done for DAG

Last Updated:

Applies to

SnapCenter Plug-in for Exchange (SCE)


  • SnapCenter treats each SERVER\Database as a separate entity and applies retention accordingly
    • SERVER1\DB1 and SERVER2\DB1 are the same database but on different servers
    • SnapCenter will treat each as individual entities and keep retention separately for each database copy
    • If a database copy is active on SERVER1 and is then activated on SERVER2, retention will not be applied on SERVER1 until the next backup runs on SERVER1

Additional Information

Example -

  1. Retention is set to 3 days
  2. SERVER1\DB1 backs up between dates 1/1 - 1/4
  3. DB1 is moved to SERVER2
  4. SERVER2\DB1 backs up between dates 1/5 - 1/13
    1. Volume1 will contain snapshots dated 1/1 – 1/4 (3 days)
    2. Volume2 will contain snapshots dated 1/11 – 1/13 (3 days)
  5. DB1 is moved back to SERVER1
  6. SERVER1\DB1 is backed up on 4/13/2021
    1. Backups dated 4/2 – 4/4 are deleted (outside of 3 days)
    2. Retention is not applied to Volume2



******************************************************* *******************************************************