The vgchange command has an hidden option I've been looking for days.<br />
You can add --config and inline lvm.conf statements for the command.<br />
I wanted to properly unset the cluster flag of a clvm vg from an hardware snapshot for off cluster backup and that was not possible...until I discovered this hidden option in this post : <a href="http://blog.gmane.org/gmane.linux.redhat.cluster/month=20100101/page=6">http://blog.gmane.org/gmane.linux.redhat.cluster/month=20100101/page=6</a> [<a href="http://blog.gmane.org/gmane.linux.redhat.cluster/month=20100101/page=6" target="_blank">^</a>]<br />
This is the only one I could found on the internet, and man vgchange or lvm do not mention this feature. It really should be documented, this is the key for GFS enterprise class backup.
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