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  2. MIDRANGE-L
  3. January 2014

RE: I/O counts

I would suggest talking to your storage vendor if you aren't very familiar with performance tools or the other popular 3rd party tools like MPG. The storage vendor should have pre-sales architects that spend most of their time sizing prospective client environments. They will guide you through what to collect then analyze the data for you.

Here are some of the statistics I have used in the past for external storage analysis.
Avg Disk Ops/Sec, Peak Disk Ops/Sec, Avg Read Ops, Avg Write Ops, Avg Bytes per I/O, # & type of current disk Arms, Current Disk protection (Mirror/RaidX)

***********************************
Bradford Lovelady

Operating Systems Engineer
Technology Infrastructure Services

Wells Fargo Bank l 200 Wildwood Pkwy l Birmingham, AL 35209
MAC W2755-010
Tel 205-469-7552 l Cell 205-826-2834

brad.lovelady@xxxxxxxxxxxxxx


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-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of jmurfitt@xxxxxxxxxx
Sent: Friday, January 10, 2014 8:40 AM
To: midrange-l@xxxxxxxxxxxx
Subject: re: I/O counts

Hi All.

Is there an easy way to find the I/O count on a multi-lpar system. We are planning to covert to SAN storage an we are trying to size what our needs will be.

Thanks,

Joe Murfitt

P.S. This is my first attempt at using performance tools and I’m a bit lost.

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