3 Argentum

MV/A How to know when the replication is 100%?

Hello everybody,

I have 2 VNX5300 that are replicating between them with mirrorview through the iscsi ports.

I am replicating 10 LUNs every 4 hours. They start in differents time. In the secundary storage I need to make a script to create a snapshots from this replicated LUNs.

My questions is: How can I be sure that the replicated LUNs are 100% syncronized to be able to create this snapshots with a consistent data?.

What will happen if I  create the snapshots when the replicated LUNs are consistent but do not syncronized?

Is there any Mirrorview flag that I could use to compare when I want to start the snapshots?

I hope that you understand my questions.

Thank you very much. 

0 Kudos
2 Replies
2 Bronze

Re: MV/A How to know when the replication is 100%?

You can use EMC Replication Manager . It can take snap/clone of M/V secondary by managing the consistency and ensures the secondary is 100% synced

0 Kudos
2 Bronze

Re: MV/A How to know when the replication is 100%?

If the LUNs can start sync at the same time, you shall be able to use consistency group to do the sync in MV/A.  Then, after the CG is in consistent state, you shall be able to take (SnapView) snapshots on all the LUNs in a consistent session.

However, if you must sync the LUNs in different time, I do not know if it is possible to make sure the LUNs are "consistent"

0 Kudos