[Linux-cluster] Minimum requirements for clvm only?

[Patrick Caulfield]

Jonathan E Brassow wrote:
> Patrick can correct me if I'm wrong, but you don't need clvmd at all. 
> You could 'tag' your volume groups with the machine name.  No-one would
> be able to manipulate those volume groups except the machine whose tag
> matches.  If it is a virtual machine, it doesn't matter where it goes,
> it will still be able to manipulate the volume group with the
> appropriate tag.
> 
> This adds a little complexity to the lvm.conf file - so it's really a
> trade-off in terms of where you put your effort (better understanding of
> lesser-used features of LVM vs. coming up to speed on cluster
> infrastructure).

You're not wrong, that would work. It would complicate management rather, because each VG could only be manipulated by its owning node.

-- 

patrick