RAID / Disk Checking Utilities

Hi

I have a situation where we have a VM test rig environment with older disks / RAID setups.  We have latency problems when storing multiple VM’s etc. and sometimes when we have issues I’m not sure if it’s the RAID  controllers, the Disks themselves or simply the fact we are trying to run too much from it.

In larger environments we over spec disks and SAN’s so it’s never so much of a problem but would like to know there is a preferred utility for checking the health of Disks in terms of Sectors / Load / RAID / IOPS etc.  Not sure if there is 1 load testing tool I can run across a whole volume which will load test, give a IOPS reading and report back any bad sectors etc.  Happy for this to be Linux or windows based (or ISO bootable).

I know this is a bit of an open question and happy to give out multiple points for this but im an IT professional that has worked in semi-enterprise environments for some time and feel that because most storage is over spec’d and there is a bit of a knowledge whole in this area.  When you search the internet its all dodgy pc disk checking apps,  need something a bit more hardcore.

Thanks EE Crew
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ncomperAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
IOMeter is considered the tool to use in the industry to test the IOPS.
http://www.iometer.org/

It could be a combination of both controller, and disks.

What speed and RAID configuration are the disks?

you can work out theoretical IOPS here

http://www.wmarow.com/strcalc/
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andyalderSaggar maker's bottom knockerCommented:
For RAID controllers the only way to test for bad sectors is with the card manufacturer's tools. Most of them do background checks on the disks but only during otherwise idle times.
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ncomperAuthor Commented:
Thanks
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