Re: ubuntu xenial + lvmlockd

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2017-04-18 18:00 GMT+02:00 David Teigland <teigland@redhat.com>:
On Thu, Apr 13, 2017 at 06:14:54PM +0200, Charles Koprowski wrote:
> Hi all,
>
> I'm trying to set up a shared VG between 2 ubuntu servers (xenial) using
> lvmlockd for locking.
>
> Unfortunately, even if the default config (lvm.conf) mentions the
> possibillity to use lvmlockd (use_lvmlockd = 1), I cannot find any trace of
> the daemon lvmlockd or lvmlockctl tool in ubuntu.
>
> Does anyone already done this before ?
>
> Do I have to build lvm from source in order to use lvmlockd ?

I'd guess that lvm was not built with lvmlockd support, in which case you
would need to rebuild it with one or both of --enable-lockd-sanlock,
--enable-lockd-dlm (and I'm going to rename those options to be "lvmlockd"
in a minute.)

Thank you David !

Would you consider the use of lvmlockd + sanlock as "production ready" ?

My goal here is to replace an existing cluster of 5 nodes using clvmd + dlm + corosync to access a shared VG of 6 TB containing around 300 LVs.

The current solution is working fine but I find using dlm + corosync "just" for locking a bit overkill.

Regards,

Charles
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