Data Migration Using Snapmirror

Argie — Wed, 04 Jun 2025 15:01:05 GMT

Here is the scensario:

Site A (local) = Cluster A (source) and Cluster D

Site B (remote) = Cluster B (destination) and Cluster C (Destination of cascade from Cluster B)

The objective here is to migrate the data (fileshares) from Cluster A to Cluster D and decommison Cluster A and Cluster B. Cluster D will snapmirror to Cluster C

Cluster A is replicating using snapmirror to Cluster B

We added Cluster C in Site B (remote)

We setup a snapmirror cascade from B to C (A-->B--->C)

We now added Cluster D in Site A (local)

We now need to migrate the data from Cluster A to Cluster D.

Cluster C is already caught up. So we can remove Cluster B from the cascade at this point and reseed Cluster A with Cluster C.

Here is the tricky part:

If I setup a new relationship between Cluster A and Cluster D and migrate the data, will snapmirror be smart enought to know that the data residing in CLuster C is the same?

Do I keep the snapmirror job from Cluster A to Cluster C running while migrating the data from Cluster A to Cluster D?

What is the best workflow to acomplsih this data migration?

Thank you for your time!

Argie

Re: Data Migration Using Snapmirror

J_curl — Tue, 15 Aug 2017 21:07:26 GMT

break the snapmirror from A-->C and do snapmirror resync from D-->C.

topic Re: Data Migration Using Snapmirror in ONTAP Discussions

Data Migration Using Snapmirror

Re: Data Migration Using Snapmirror