[Ocfs2-users] Anyone have an idea how to find file i/o throughput?

[Ulf Zimmermann]

We got a remote Oracle 10g R2 standby running on OCFS2. Initial when we
started the standby, read I/O was < 5MB/sec on average. Since then it
has grown to over 40MB/sec (longer average, it peaks much higher). Here
is a graph showing this:

http://www.alameda.net/~ulf/dbphx01.png

We also have a local standby running (on EXT3) which is not showing the
same symptom. I am trying to find where all these reads are happening.
Anyone have an idea how to figure that out on Linux?

Ulf.