Hello Toasters,
We are going to move some disk shelf chains that contain aggregates to new heads. The old heads are a CF pair of FAS3050s running 7.3.1.1 and the new heads are a CF pair of FAS3170s running 7.3.2. We will not replace the existing root volumes on the 3170s.
I am planning to shut everything down and reconnect the shelf chains.
When I power everything back up, the new heads will boot and find a lot more disks. Will they recognize the aggregates? From the aggr man page it looks like the aggregates will be recognized as "foreign" and I will need to run "aggr online".
The 3050 does not use software disk ownership, each head owns entire disk shelf chains. The 3170 uses software disk ownership. Any issues there? Do I need to disable disk.auto_assign on the 3170s beforehand and manually assign the disks to the correct heads? Then reboot?
Instead I could connect each shelf chain to just the 3170 head that will own it, and boot the 3170s. They should find their new disks, take ownership, and see the new aggregates. Then I could shut down, connect the shelf chains to both heads, and boot back up. Seems easier, but will it work?
Am I missing anything important?
Steve Losen scl@virginia.edu phone: 434-924-0640
University of Virginia ITC Unix Support