[Ocfs2-users] OCFS2 + ISCSI SAN slowdown

[Loebbert.C at eplan.de]

Hi Guy,

if you have serveral OCFS2 partitions on the same storage and only one of them is slow, then I would say it is not an OCFS2 problem. I could imagine that your files could be the reason of the performance problem. I encounter the same behavior when I copy a lot of really small files (<1KB). Copying of 30GB will take up to 10 hours! Copying the same files inside a ReiserFS partition (on the same storage) will just take 1,5-2 hours.

Best regards,
Christian

-----Ursprüngliche Nachricht-----
Von: ocfs2-users-bounces at oss.oracle.com [mailto:ocfs2-users-bounces at oss.oracle.com] Im Auftrag von Guy
Gesendet: Donnerstag, 18. Februar 2010 04:55
An: ocfs2-users at oss.oracle.com
Betreff: [Ocfs2-users] OCFS2 + ISCSI SAN slowdown

Hi,

We've got an ISCSI target on a SAN run by our hosting company. We've
got 3 OCFS2 partitions on it and one of them has suddenly become very
slow.
What can I do to check whether this is an OCFS2 problem or a problem
with the SAN?

The hosting company have said they've had other complaints about slow
I/O with the SAN, but I'd like to rule out OCFS2 at the problem.

I'm running Ubuntu Karmic which I believe includes OCFS2 1.4.4?

Thanks
Guy

-- 
Don't just do something...sit there!

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