Vmware ESXi - HP ML350 G5

Hi - I am having an issue with one of our production hosts, which is an HP ML350 G5. It is currently running esxi 5.5 (standard, not even custom hp iso) which is not supported on this server, and we are getting regular vmware errors about the disk i/o latency increasing from 2000ms to 1350000ms - and the virtual machines might as well not exist at this point as performance is significantly  impacted.

Initially I had maybe overloaded the host and so removed half of the vm,s however the problem continued. I then checked the RAID card and it reports no faults with the RAIDs, so I can only imagine that the fault is indeed with the version of the hypervisor.

HP support lists ESXI 5.0 as a supported hypervisor however the vmware compatability guide does not list the ML350 G5 as a supported hardware platform for any version from what I can see.

Does anybody have any experience of either this fault, or of a supported and stable version of ESXI running on an HP ML350 G5?

Thanks.
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sparky2156Asked:
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Paul SolovyovskySenior IT AdvisorCommented:
If you upgraded to 5.5 make sure you update the firmware on the network card/hba.  there's been a lot of issues with 5.5 needing newer firmware on the hardware.
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Although the ML350G5 does not appear in the list, does not mean it will not work.

It means it was not certified, or failed certification, or HP just want to sell you new servers.

If you return to ESXi 5.0, does it cure the issue?

There have been issues with the Smart Array driver with versions of ESXi.

see here

http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=2006942

If this is a serious production server, and is impacting service, you need to think about the use of an unsupported operating system on your hardware.
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sparky2156Author Commented:
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