On Thu, Sep 5, 2013 at 12:38 PM, Gregory Farnum <greg@xxxxxxxxxxx> wrote: > On Thu, Sep 5, 2013 at 9:31 AM, Alfredo Deza <alfredo.deza@xxxxxxxxxxx> wrote: >> On Thu, Sep 5, 2013 at 11:42 AM, Bernhard Glomm >> <bernhard.glomm@xxxxxxxxxxx> wrote: >>> >>> Hi all, >>> >>> as a ceph newbie I got another question that is probably solved long ago. >>> I have my testcluster consisting two OSDs that also host MONs >>> plus one to five MONs. >>> Now I want to reboot all instance, simulating a power failure. >>> So I shutdown the extra MONs, >>> Than shutting down the first OSD/MON instance (call it "ping") >>> and after shutdown is complete, shutting down the second OSD/MON >>> instance (call it "pong") >>> 5 Minutes later I restart "pong", than after I checked all services are >>> up and running I restart "pong", afterwards I restart the MON that I brought >>> down the at last, not the other MON though (since - surprise - they are in >>> this test szenario just virtual instances residing on some ceph rbds) >>> >>> I think this is the wrong way to do it, since it brakes the cluster unrecoverable... >>> at least that's what it seems, ceph tries to call one of the MONs that isn't there yet >>> How to shut down and restart the whole cluster in a coordinated way in case >>> of a powerfailure (need a script for our UPS) >>> >>> And a second question regarding ceph-deploy: >>> How do I specify a second NIC/address to be used as the intercluster communication? >> >> You will not be able to do something like this with ceph-deploy. This >> sounds like a very specific (or a bit more advanced) >> configuration than what ceph-deploy offers. > > Actually, you can — when editing the ceph.conf (before creating any > daemons) simply set public addr and cluster addr in whatever section > is appropriate. :) Oh, you are right! I was thinking about a flag in ceph-deploy for some reason :) Sorry for the confusion! > -Greg > Software Engineer #42 @ http://inktank.com | http://ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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