[Ocfs2-users] Two node performance question

[Sunil Mushran]

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.