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Reset an Oracle VM Server

by Laurens van der Starre on May 9, 2012 · 7 comments

It can happen that a Oracle VM Server somehow doesn’t want to leave a server pool. I encountered this when I removed a clustered server pool (by, of course, first de-assigning the server nodes assigned to it, and then removing the server pool). It so happened to be that two servers in that server pool were down during the change because of the distributed power management policy. By the time these servers came online, the server pool wasn’t there, the NFS share wasn’t either, and both servers were in a non-existent server pool which I couldn’t remove or alter.

In such a situation you’d want to reset an Oracle VM Server. What helped me were these excellent steps posted on the Oracle Forums by user “627349”, these work like a charm:

#Stop ovs-agent
service ovs-agent stop

#Delete /etc/ovs-agent/db on the server(s)
rm /etc/ovs-agent/db

#Empty the /etc/ocfs2/cluster.conf
/dev/null> /etc/ocfs2/cluster.conf

#Start the ovs-agent
service ovs-agent start

I always reboot the Oracle VM Server afterwards, just to be sure. The Oracle VM Server will then be an unassigned server in Oracle VM Manager, so you can assign it again to some server pool.

Reset an Oracle VM Server, 4.8 out of 5 based on 8 ratings
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{ 7 comments… read them below or add one }

ridhoyp September 7, 2015 at 9:26 am

Thanks for the Tutorial, so much help!

Reply

umesh January 28, 2016 at 7:33 pm

thanks for the steps…worked like a charm even after 4 yrs…

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santosh loke April 4, 2017 at 3:55 pm

still works! thanks!

Reply

Serge Couture October 18, 2017 at 8:05 pm

It worked fine with me with Version: 3.2.4.524Build: 20130605_524 but I had to delete the /etc/ocfs2/cluster.conf and not only zapping the file.
It was seen in the diags info of the failed job as of this:

“Status: org.apache.xmlrpc.XmlRpcException: exceptions.Exception:/etc/ocfs2/cluster.conf already exists”

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Serge Couture October 18, 2017 at 9:25 pm

also, as “/etc/ovs-agent/db” is a directory, I had to a
rm -rf /etc/ovs-agent/db

Reply

Black Magic Removal April 27, 2018 at 12:38 pm

He has given a lot of information inside this blog.thanks

Reply

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