If your storage vendor has no magic tools available, this won’t happen without downtime.
Even changing the active LUNs on that machine will need some downtime… but the easiest way, and with a minimum amount of downtime, would be:
- set up a synch job between old and new storage
- synch all relevant disks
- prepare the cluster and the storage for new disks
- downtime start
- lastly, remove the old storage
- attach that new storage
- restart SQL Ressource Group
- downtime ends
I hope my answer is helpful to you,
Your
Bjoern Peters
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