Re: Startup and Shutdown of a Virtual/Physical cluster

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On Thu, 2008-01-24 at 11:36 +0100, Paolo Marini wrote:
> Thanks for the answer, I suspected that failover domains could do the
> trick, I will try this solution.
> 
> Anyway, shutdown is for me still unclear.
> 
> starting up a cluster involves starting the cman daemon, clvmd, gfs,
> mounting the gfs filesystems and starting rgmanager. Stopping cman does
> not work on a cluster, because the other nodes still think that the
> shutting down node is up, and they end fencing it if it is no more
> responding. In fact, the shutdown procedures of a single node involves the
> removeal of the node from both the fencing and cman agents (fence_tool
> remove and cman_tool leave remove commands).
> 
> So stopping the daemons is not enough. Beside this, the ordered shutdown
> of a physical/virtual cluster requires the shutdown of the virtual first
> then of the physical cluster.

Also, chkconfig --del xendomains if you haven't already.  Otherwise,
xendomains might start up domains you're trying to manage with rgmanager
- not good!

-- Lon

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