[ClusterLabs] VG activation on Active/Passive

Jorge Fábregas jorge.fabregas at gmail.com
Sat Aug 29 14:30:38 EDT 2015


For an active/passive cluster, using a non-cluster filesystem like ext3
over LVM (using cLVM & DLM), would you:

-  include the VG activation in the same cloned group that hosts cLVM &
DLM? (top of screenshot) so that in both nodes the VG is activated (even
though this is not a cluster-filesystem so there's no need to have the
VG activated on both sides simultaneously)?


- do you create a separate group with the VG activation (LVM resource)
and tie it with the Filesystem resource? (bottom of screenshot).  This
makes more sense to me since the VG only needs to be activated where the
filesystem is going to be mounted.

Here's my screenshot:


I belive this last one is THE way to go for such setup (active/passive)
but I'm wondering why I have seen examples online with the first case.
Maybe I'm missing something.


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