How do I change the principal switch non disruptively ?

Question

I have 5 switches in a fabric: switches 2, 4, 7, 8 and 10.
Number 10 needs to be the principal switch in a certain VSAN (it's the core), but switch 8 is now. I changed the domain priorities, so switch 10 has prio 16 and the other 4 have prio 128 in that VSAN. How can I restart the election and make switch 10 the principal switch ?

Message was edited by:
RRR
Corrected some typos

protoss · Accepted Answer

Looks like you can do 1 thing.Now that the priority is highest for this switch we just need a polling to be done and this switch will become the priority switch. For that you can issue the commandfcdomain restartthis will restart the fcdomain non-disruptively for disruptive restart of fcdomain issue the commandfcdomain restart disruptive.I have not implemented nor tested this method but I believe it will work. What do you guys think?Message was edited by: protoss

ConnectrixHelpe · Answer

Hello,I'm still trying to understand why you need a switch to be principal. What are your reasons?Thank you.

RRR · Answer

I know, I kow.... the customer specifically asked for this. He liked the idea of having some sort of master switch per fabric and the only reason I could think of is that there's probably only 1 name server per fabric and that the principal is it, so spreading the principals a bit makes sence performance wise.

And besides that it's a visual thing: if you discover a switch which belongs to a larger fabric, the fabric name will appear in FM, displaying the principal switch.

Can't think of anything else, but it's nice to know I can fullfill the customer's wish by the mentioned commands. Can you think of a reason not to invoke these commands ? Is it nonsdisruptive ?

karan2 · Answer

Hi,Did you get a chance to test the fcdomian restart command. Is it non-disruptive??I have HP-UX hosts attached to the SAN, so want to make sure fcid of the ports won't change.Thanks.

RRR · Answer

Haven't had the chance just yet, I'm sorry. I sent the commands to the customer, but haven't had any feedback yet.I'm not able to test as well, but I'll ask my team to test this asap.

Connectrix

How do I change the principal switch non disruptively ?

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