[Linux-cluster] resetting a fence - Device (ILOM) during a running Cluster (RHEL 5.2)

[Mark Hlawatschek]

> we are comfortable with our 2-Node RHEL-5.2 - Cluster (some Oracle-DBs),
> we have subscribed for several months and which is running stable.
>
> We use two SunXFires 4200 M2 server and do the fencing with the integrated
> ILOMs. Unfortunatly, -  because of errors on the ILOM the ILOM of the one
> node has to be reset, which is the advice of our hardware-vendor. The reset
> of the ILOM can be done in production (tested on a single machine)
> transparent for the OS on this machine (means: without the need of
> rebooting the OS of the machine.) The only thing, I noticed during the test
> on the single - Server is, that the ILOM is down (network not available)
> for about 30 sec.
>
> Does this short downtime of the fencedevice affect the Redhat
> Clustersoftware or can we do that action without problems in procution
> -time ?
If there's no need for fencing the node during the 30secs period, it can be 
done during production time.

-Mark