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List:       ocfs2-users
Subject:    Re: [Ocfs2-users] Two node performance question
From:       Sunil Mushran <sunil.mushran () oracle ! com>
Date:       2009-09-18 20:30:08
Message-ID: 4AB3EDD0.3090905 () oracle ! com
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Bruce Leggett wrote:
> The FS performance is only slow from one node. Typically, writes and reads look \
> good one node at a time, but not two.

If concurrent io to the shared device is slow, then this would be expected.

> So your recommendation is I need to get throughout/IO boosted at the iscsi/disk/san \
> level? Optimizing iscsi and upping performance with more / faster disks etc?

Yes.

> Are there any OCFS2 options that play into this or is it all iscsi/disks at this \
> point? 

The ocfs2 options allow you to tune your performance for different
workloads. But it is not going to hide slow concurrent io to the shared
device.

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