We are migrating our two-node FAS2552 (9.3) cluster to new switches. The new and old switches have L2 connectivity. All 4 10G ports are in use on each node. There are 2 available 1G ports on each node. I've read forum posts that describe, broadly, two options:
1) use takeover to move all workloads on to one node, connect the freed up node to the new switches, giveback, rinse and repeat with the other node, or
2) migrate the data and LIFs so that they are all on one node, connect the freed up node to the new switches, migrate workloads back, rinse and repeat with the other node.
The downside to #1 is (my understanding) that when you move the node to the new switches, you cannot verify network network connectivity before doing the giveback - so you need to be sure the networking is correct.
It seems the only downside to #2 is that it is more typing/work and perhaps that means greater potential for error.
I can model #2 using the available 1G ports on the old and new switches with some test volumes and LIFs.
Of course, the goal is to do this non-destructively, except for any CIFS session blips.
What do you think would be best? Are there other options to consider? Thanks!