[Ocfs2-users] Multiple LUNs and ocfs2

[Sunil Mushran]

Currently ocfs2 does not support any lvm. It has to do with
having a common cluster stack. That is still a work-in-progress.

Bill Ranck wrote:
> Hello folks,
>    I am a newbie with ocfs2 and Oracle VM in general, but I'm slowly
> figuring things out.  I have installed ovm server on 2 blades in an IBM
> bladecenter, and I have gotten ocfs2 working such that both blades are
> mounting /OVS from a shared SAN LUN.  So far, so good.
>    I will be installing a guest VM on one of the blades with the idea
> that we can do live migration if/when needed.  The database that will be
> set up there will need to use 6 X 100G LUNs from the SAN.  What is the
> best way to aggregate these LUNs for that purpose?  I've got them
> visible as /dev/dm-2 through /dev/dm-7 on both systems.  Do I use LVM at
> the hypervisor level to combine them into one big disk group and volume,
> then use mkfs.ocfs2 on that?  Or is there a better way?
>    I see, with a quick look through of the archives from this list, that
> ocfs2 can not aggregate the LUNs itself.  I'm just hoping for a pointer
> in the right direction so I don't shoot myself in the foot by choosing
> the wrong thing early in the project.
>
>