topic Re: SnapMirror and DR test in ONTAP Discussions https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43819#M10303 <HTML><HEAD></HEAD><BODY><P>Correct.. with the same mirror re-established the target will rollback to a common snapshot to the source then mirror forward, losing all changes done during the test and going back to the way it was.&nbsp; You could also FlexClone a snapshot and keep the mirrors running then destroy the clone after testing.</P></BODY></HTML> Thu, 21 Mar 2013 17:30:44 GMT scottgelb 2013-03-21T17:30:44Z SnapMirror and DR test https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43814#M10301 <HTML><HEAD></HEAD><BODY><P>If I break a SnapMirror relationship and present LUNs etc at the DR site, write some data but this is isolated from Production and only a test what would happen when the SnapMirror is resynced?</P><P></P><P>i.e. it's not the usual DR case where the relationship is reversed thus changes on DR reflected back to Main site.</P><P></P><P>What would happen to the changed blocks on the DR site would they be deleted given SM will resync to the last common snapshot?</P></BODY></HTML> Thu, 05 Jun 2025 06:06:52 GMT https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43814#M10301 Willybobs27 2025-06-05T06:06:52Z Re: SnapMirror and DR test https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43819#M10303 <HTML><HEAD></HEAD><BODY><P>Correct.. with the same mirror re-established the target will rollback to a common snapshot to the source then mirror forward, losing all changes done during the test and going back to the way it was.&nbsp; You could also FlexClone a snapshot and keep the mirrors running then destroy the clone after testing.</P></BODY></HTML> Thu, 21 Mar 2013 17:30:44 GMT https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43819#M10303 scottgelb 2013-03-21T17:30:44Z Re: SnapMirror and DR test https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43828#M10304 <HTML><HEAD></HEAD><BODY><P>Thanks, I've already suggested the FlexClone route but the customer wants this as close to DR as possible to test full procedures.</P></BODY></HTML> Thu, 21 Mar 2013 17:46:50 GMT https://community.netapp.com/t5/ONTAP-Discussions/SnapMirror-and-DR-test/m-p/43828#M10304 Willybobs27 2013-03-21T17:46:50Z