I'm trying to put the steps together to move from a FAS2040 to a FAS3270 to figure out how disruptive this would be to a customer. We need to make some purchasing decissions and projected downtime in the future.
Current layout:
FAS2040 12x450GB 15k drives
Presenting iSCSI and NFS storage to a VMware cluster
Presenting iSCSI LUNs directly to physical clustered SQL servers
We will be adding a SAS disk shelf to the 2040 knowing that down the road there will be an upgrade to the 3270's, because of another datacenter move.
What steps would you recommend for moving everything from the 2040 to the 3270 in the least disruptive way possible. I'm thinking there will have to be downtime to move the addition disk shelf from the 2040 to the 3270 and then will have to use SnapMirror to move the data from the internal disks with downtime to cutover. Any additional insight will be helpful. If there is a document out there about moving disk shelves between controllers that would help too.
Thanks.