Re: Ceph mon quorum

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On 4/5/2013 7:57 AM, Wido den Hollander wrote:

You always need a majority of your monitors to be up. In this case you
loose 66% of your monitors, so mon.b can't get a majority.

With 3 monitors you need at least 2 to be up to have your cluster working.

That's kinda useless, isn't it? I'd've thought "2 copies on-site and one off-site, and if the main site room's down we can work off the off-site server" is a basic enough HA setup -- we've had it here for some time. Now you tell me ceph won't even do that?

Dima

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