VMware i/o error occured

Hi, On an ML310e Gen8 Server, Running VMware ESXi frmo a USB stick inside it.

I plan to use the onboard raid and 4 drives for storage and an additional raid card for the virtual guest files

I added an Adapter ASR-3405 (which is supported on VMware HCL) and plan to use 4 drives off this for VM OS storage etc

Installed the HP image of VMware 4.1, 5.1u1 and 5.5 however every image gives me the same issue.

If i try to upload a file to the hard drive connected to the adaptec ASR-3405, it goes for approx 10 secs and i get an i/o error

On some googling of someone getting the same error, it was suggested Intel VT-d be disabled, I did this and the error went away, i was able to successfully
upliad files to the datastore hanging off the ASR-3405.

issue is, i need VT-d as i want to direct map the onboard controller through to a storage VM, So im stuck!

Bios is up to date, Raid controller (ASR-3405) is also  up to date, well as up to date as it can be given its discontinued.

Any help would be appreciated, or hyper-v it is
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You've got two options, because it's a known Adaptec issue with their driver.

1. Disable  VT-d (yes, I understand you want to use this feature).

2. Change the storage controller.

Also VM Direct Path I/O and presenting storage directly to a VM with this card also has issues! Because it's a RAID card, rather than standard SCSI hba.

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wsc-itAuthor Commented:
Ah, Ok, So im better with something like an ibm m1015 in It mode or something?

Or is there an adaptec one that would be good? i quite like them
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, you are much better off with

IBM M1015
wsc-itAuthor Commented:
Assisted promptly, and offered reasonable options.
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