Lustre discuss - Mar 2009 - Any production DRBD/Lustre deployments?

Hi all,
I did some searching and found mixed things about DRBD with Lustre. In
particular, has anyone successfully been using this configuration in a
production environment?

On paper, I would like to do something like mirroring of Thumper-like
systems, and then striping across several of these ''pairs''.
For redundancy at both the drive and system level, essentially a stack
of: (a) each server has a ''local'' RAID6 (b) For every
''active'' server, there
is a 2nd that serves in a DRBD network RAID1 mirror for failover of both the
OSS and the OST on the same system (through heartbeat) (c) Lustre striping
across several of these groups.

Any successful deployments like this? From my search, the limited info I can
find on DRBD with Lustre seems more experimental.

Thanks so much,
Jordan
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Hi Jordan,

No we do not stripe or drbd/raid our OSTs but our MDT/MGS data is
drbd:ed, backing storage is raid10 over 6 disks and then
primary/master over two mdt/mgs machines with drbd and heartbeat. And
we use it in production, if that is any help to you.

2009/3/8 Jordan Mendler <jmendler at ucla.edu>:
> Hi all,
> I did some searching and found mixed things about DRBD with Lustre. In
> particular, has anyone successfully been using this configuration in a
> production environment?
> On paper, I would like to do something like mirroring of Thumper-like
> systems, and then striping across several of these
''pairs''.
> For?redundancy?at both the drive and system level, essentially a stack
> of:?(a) each server has a ''local'' RAID6 (b) For every
''active'' server, there
> is a 2nd that serves in a DRBD network RAID1 mirror for failover of both
the
> OSS and the OST?on the same system (through heartbeat) (c) Lustre striping
> across several of these groups.
> Any successful deployments like this? From my search, the limited info I
can
> find on DRBD with Lustre seems more experimental.
> Thanks so much,
> Jordan
> _______________________________________________
> Lustre-discuss mailing list
> Lustre-discuss at lists.lustre.org
> http://lists.lustre.org/mailman/listinfo/lustre-discuss
>
>


-- 
Timh Bergstr?m
System Operations Manager
Diino AB - www.diino.com
:wq