[Ocfs2-users] OCFS2 and VMware ESX

[Sedlock, Mark A.]

We run a similar set up, SLES 10 SP1, we were ESX 3.0.x and are now 3.5.
We're running the version of ocfs2 that shipped with SLES 10 SP1.

4 nodes accessing raw mapped LUNs via ESX from an HP SAN on HP Blade
Servers. Qlogic HBAs, standard NICs; nothing special.

The biggest hurdle we ran into was time synch on the individual hosts
(VMWare ESX + some variants of Linux have an interesting clock tick
relationship which I still don't understand) that was causing some ugly
fencing.

It's been running well for about 8 months.  Overall we're pretty happy
with it thus far.  That said, we don't let ESX VMotion the cluster nodes
via DRS, but that's more because we haven't tested it.  The cluster is
used for Apache web hosting.

web7:~:%1003#rpm -qa | grep -i ocfs
ocfs2-tools-1.2.3-0.7
ocfs2console-1.2.3-0.7
ocfs2-tools-devel-1.2.3-0.7
web7:~:%1004#uname -a
Linux web7 2.6.16.53-0.16-smp #1 SMP Tue Oct 2 16:57:49 UTC 2007 i686
athlon i386 GNU/Linux
web7:~:%1005#cat /etc/SuSE-release 
SUSE Linux Enterprise Server 10 (i586)
VERSION = 10
PATCHLEVEL = 1
web7:~:%1006#

--mark
Mark Sedlock
Network and System Services
Rowan University

> -----Original Message-----
> From: ocfs2-users-bounces at oss.oracle.com [mailto:ocfs2-users-
> bounces at oss.oracle.com] On Behalf Of Haydn Cahir
> Sent: Monday, July 28, 2008 9:49 PM
> To: ocfs2-users at oss.oracle.com
> Subject: [Ocfs2-users] OCFS2 and VMware ESX
> 
> Hi,
> 
> We are haing some serious issues trying to configure an OCFS2 cluster
> on 3 SLES 10 SP2 boxes running in VMware ESX 3.0.1. Before I go into
> any of the detailed errors we are experiencing I first wanted to ask
> everyone if they have successfully configured this solution? We would
> be interested to find out what needs to be set at the VMware level
> (RDM, VMFS, NICS etc) and what needs to be configured at the O/S
level.
> We have a LUN on our SAN that we have presented to our VMware hosts
> that we are using for this.
> 
> Any help would be greatly appreciated!
> 
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