I have two ESX clusters (Cluster 1 at primary and Cluster 2 and secondary) with VM's replicating through SRM between Cluster 1 and Cluster 2. The underlying LUN's are replicated through snapmirror.
I have a task at hand to migrate the VM's from Cluster 1 to Cluster 3 at primary and Cluster 2 to Cluster 4 at secondary. Which of the following will be a convenient solution -
1. Provisioning new LUN's to Cluster 3 and Cluster 4 and setting up a snapmirror relationship between them. Migrating the VM's on old cluster to the new LUN's through storage vmotion.
2. Mapping the old LUN mapped to Cluster 1 to the Cluster 3 and then unmapping it from Cluster 1 once the SRM relationship is setup again between the VM's on new clusters.
The second solution seems a little dodgy and it was suggested by someone so as to reduce time involved in storage vmotion. Sorry if the text is confusing.