[linux-lvm] CLVM Questions

Patrick Caulfield pcaulfie at redhat.com
Thu Feb 8 08:53:40 UTC 2007

Jayson Vantuyl wrote:
> Is it possible to mix clustered LVM and unclustered LVM?  I tried but it
> seemed to have issues.

I'm not sure what you mean here. You either have a cluster or you don't.

If you have clvm on one node on a cluster then it needs to be on ALL nodes of
the cluster - you can't have an isolated node that is also part of the CMAN

If what you mean is "can I have a non-clustered Volume Group alongside cluster
volume groups", then the answer is "yes". There is a flag on the VG that
indicates whether it is clustered or not. activated with vgchange -cy,
deactivated with vgchange -cn. You can't mark individual LVs within a VG as
clustered/non-clustered though. That wouldn't make sense.

> Also, does anyone know if Gentoo likes it better if you use the CLVM
> package or if you build the LVM package with the clvm USE flag?



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