IOPS Test

A provider has ran some IOPS test on our VM (without notice) via a script in toad!?  
Is this a known application that is adequate for testing iops over VM's using local storage?

Are there alternatives?

Thanks
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CHI-LTDAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
I would ask Why and How, based on what?

Oh should now, I thought they had evidence to suggest that they had tested, and it go this value.

You've done the calculations, and proved, that your theoretical limit is approx 2000 IOPs, with 16 disks in RAID 6.

In the real world with VMware, ALL I/O is virtualised, so you will get less than the value calculated.

To Increase IOPS, you would need to change RAID type, increase disk speed, and add more disks.
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CHI-LTDAuthor Commented:
ok, thanks.

Is there or can you recommend one for single host?
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
All of them!

We use IOMeter, but this may be too complicated, otherwise quick and easy CrystalDiskMark
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CHI-LTDAuthor Commented:
ok, crystal sisk mark running, what should i be looking at?
also i assume this won't really help with esxi hosts, but standalone servers?
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Andrew Hancock (VMware vExpert / EE MVE^2)Connect With a Mentor VMware and Virtualization ConsultantCommented:
IOPS?

Disk Read and Write specs

it's difficult to generate IOPS for the ESXi hosts, but all your IOPS are in VMs on the datastore!
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CHI-LTDAuthor Commented:
ok, 3 servers, same spec all with local or DAS.

Top esxtop is running an install of oracle as i type.

the other 2 are sat there, serving!

Thoughts on the stats?
iops.bmp
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
they look, okay, are you having issues?
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CHI-LTDAuthor Commented:
Not really, only responding to our supplier who said we should be getting 4000 iops on our server..
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CHI-LTDAuthor Commented:
Was a leftover snapshot on the host causing the iops issue.  Was 90, with snapshot deleted ran at 4000.
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