[Dovecot] Best Cluster Storage
Eric Rostetter
rostetter at mail.utexas.edu
Fri Jan 14 00:46:13 EET 2011
Quoting Jonathan Tripathy <jonnyt at abpni.co.uk>:
> I'm hearing different things on whether dovecot works well or not with GFS2.
Dovecot works fine with GFS2. The question is performance of
Dovecot on GFS2. I do dovecot on GFS2 (with mbox instead of maildir)
and it works fine for my user load... Your userload may vary, and
using maildir may make your results different than mine.
> Of course, I could simply replace the iSCSI LUN above with an nfs
> server running on each DRBD node, if you feel NFS would work better
> than GFS2.
Either should work. I'd use GFS2 myself, unless you have some compelling
reason not to...
> Either way, I would probably use a crossover cable for the DRBD cluster.
I use 2 1Gb links bonded together, over crossover cables...
> Could maybe even bond 2 cables together if I'm feeling adventurous!
Yes, recommended. That is what I do on all my clusters.
> The way I see it, is that there are 2 issues to deal with:
>
> 1) Which "Shared Disk" technology is best (GFS2 over LUN or a simple
> NFS server)
> and
> 2) What is the best method of HA for the storage system
>
> Any advice is appreciated.
Best is relative to workload, budget, expectations, environment, etc.
And sometimes, it is just a "religious" thing. So I don't think you
will get much of a consensus as to which is "best" since it really
depends...
--
Eric Rostetter
The Department of Physics
The University of Texas at Austin
Go Longhorns!
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