Hi folks.
I am about to embark on a project to move a customer from a MDS 9509 based core to 9396S. It will be a staged implementation, so I want to make sure all the fcdomains and switch priorities are set right so as not to cause any disruption.
All of the VSAN domains on each switch are unique, which is good, and most are static, but one of the core switches has the domain preference as "preferred" for the main prod VSAN.
I'd like to change this to "static" before I hook in the new switches via ISL, and I want the new switches to be the primaries.
So I guess I have 2 questions:
1. If I set the fcdomain on that one switch/VSAN from "preferred" to "static", WITHOUT changing the domain ID, will that be disuptive? The docs seem to be inconclusive about this. Everything I've read says it "may" cause a disruptive restart of the VSAN.
2. The second question is about switch priorities. The plan is to setup ISLs b/w the 9396S's and the 9509's, and I move over the storage to the 9396S's,then they move the hosts over later, and decomm the 9509s. So we want the 9396S's to be the primary switch eventually. So... if I set the priority on the new 9396's, in advance, to be higher (numerically lower) than the existing configuration, will that cause any disruption? Or will things just stay as they are in the interim with the 9509s as the primary, then once the 9509s get disconnected, the primary will just move to the 9396S's? Is the reallocation of a primary switch disuptive?
I've been doing a lot of reading, but haven't found anything conclusive about this kind of thing.
Thanks,
Dean
