Comments on: VMware pvSCSI – When and when not to use it

By: scottsauer

scottsauer — Mon, 08 Feb 2010 18:37:40 +0000

Thanks for the link Didier! Yes this breaks the traditional expected IOPS for any virtual machine, I would say once you get into several hundred iops per vm, you need to shift your thinking about your storage configuration. You could easily begin to impact your other virtual machines that share that same data store.

By: PiroNet

PiroNet — Mon, 08 Feb 2010 14:39:31 +0000

Hi Scott,
2000 IOPS it's definitely a lot for a single VM!

>Consider this, a standard fiber channel 10,000 RPM drive averages around 125 IOPS per disk.
Here is a formula to easily calculate the IOPS of any disk: 1/(average latency in ms + average seek time for read or write in ms)

More at http://deinoscloud.wordpress.com/2009/09/11/und...

Cheers,
Didier

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Most Tweeted Articles by Virtualization Experts: MrTweet — Sat, 06 Feb 2010 11:05:04 +0000

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By: Tim Oudin

Tim Oudin — Sat, 06 Feb 2010 05:50:52 +0000

Great, and quick, follow up Scott!

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uberVU - social comments — Sat, 06 Feb 2010 00:37:42 +0000

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