[Lustre-discuss] drbd async mode

[Andrea Frittoli]

I'm trying a Lustre + DRBD set-up, I would like to use DRBD with the
following setup:

on MDS: DRBD emulates an MDT on shared storage. From Lustre
perspective one MDS is active, the other is passive
on OSS: BRBD emulates two OST on shared storage for each OSS couple.
From Lustre perspective each OSS is active for one OST and passive for
the other.

I'm planning to use DRBD in active/passive mode, so that the storage
is mounted only on the active server, and luster is mounted on top.
I'm not sure how to sync the mount/umount of the DRBD partition and
the mount of MDT/OST upon failover.

The target setup shall have 2 MDS (1 couple) and 8 OST (4 couples),
dedicate LANs for heartbeat and drbd.

Do you have any details of your setup you may share about this?

TIA!


On Aug 12, 4:50 am, "Mag Gam" <magaw... at gmail.com> wrote:
> Ha yes..I seen this before Sebastein. :-)
>
> I wanted to see if other people have tried it and their thoughts were.
>
> thats all
> TIA
>
> On Mon, Aug 11, 2008 at 2:33 AM, Sébastien Buisson
>
> <sebastien.buis... at bull.net> wrote:
> > Hello,
>
> > I ran some tests with DRBD and Lustre a few months ago (including in async
> > mode). You can find my modest findings here on the Lustre wiki :
> >http://wiki.lustre.org/index.php?title=Drbd_And_Lustre
>
> > Cheers,
> > Sebastien.
>
> > Mag Gam a écrit :
>
> >> Has anyone been using DRBD and Lustre in async mode? I was curious
> >> what type of speeds you were getting and also what network are you
> >> using?
>
> >> TIA
> >> _______________________________________________
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> >>http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
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