linux-390  

Re: Advice for perf testing dasd

Patrick Spinler
Mon, 08 Feb 2010 09:34:54 -0800

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Oh, thanks.  I'll be looking into this.

- -- Pat

David Boyes wrote:
> On 2/5/10 7:04 PM, "Patrick Spinler" <spinler.patr...@mayo.edu> wrote:
>
>
>> I'm doing some comparison studies on dasd / disk I/O for different
>> configurations of storage and storage on different virtualization
>> platforms (trying to convince management that oracle on Z is an okay
>> thing).  I'd really really appreciate any advice regarding how to
>> structure and go about doing this testing.
>
> Check this link out:
>
> http://www.oracle.com/technology/software/tech/orion/index.html
>
> Orion is a tool that Oracle wrote to allow you to test and compare
> filesystem and storage subsystem configurations with a synthetic
> "Oracle-like" workload without having to install the whole Oracle suite and
> find a big honking database to muck about with. I've used it a couple of
> times, and while it's not perfect (you still need to look at your VM
> performance data), at least it's a known, comparable test workload that
> you're comparing as close to apples-to-apples as you can probably get.
>
> I suspect that your Oracle-doubters might be more convinced if the test is
> one coming from an actual Oracle-distributed tool. It's available on a bunch
> of different platforms, including Linux on Z.
>
> Orion simulates several different kinds of common database workload
> patterns, including OLTP and business intelligence/data mining applications.
> If you use it, make sure you run it for at least 45-60 minutes to let all
> the various levels of caching and I/O magic reordering, etc stabilize. There
> are a LOT of different ones, and you want a steady-state measure as part of
> the suite of measurements.
>
>
>
>

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