Re: Can you run ORION against ASM disks

From: Jeremy Schneider <jeremy.schneider_at_ardentperf.com>
Date: Wed, 12 Jan 2011 16:29:50 -0600
Message-ID: <4D2E2B5E.6060904_at_ardentperf.com>

I just finished running a set of ORION tests for a customer here in Chicago, and I've used this tool a few times in the past. I don't think there's anything ASM-specific about ORION. Generally you hand it block devices - without any form of filesystem. I think the test would be just as valid whether you intend to install ASM or a filesystem on that device. It's a pretty basic tool; just doing random I/O operations with the system calls and block sizes most commonly used by Oracle. Also it lets you vary the concurrency and block sizes, in order to get a sense for the capabilities of your I/O subsystem.

Interestingly, my customer here gets better performance in "real life" (using SAR and AWR) than what the ORION benchmark indicated we should expect. (Though of course, it's still significantly less than the "raw throughput" capabilities of the disks, measured with dd.)

-Jeremy

Martin Bach wrote:
> Good evening!
>
> I've got a question about ORION - is it possible to run ORION against ASM
> disks? I have checked the documentation which seems to be 10.2 still and
> it says no, but maybe there is some undocumented functionality in it? I
> also assume that write tests, even if they were possible with ORION, are
> still destructive.
>
> Any pointers apprciated!
>
> Martin
>
> PS: 11.2.0.2 RAC on OEL 5.564bit

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Jeremy Schneider
Chicago

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Received on Wed Jan 12 2011 - 16:29:50 CST