Saturday, December 11, 2010

Event Warning ID: 3 logged after P2V of physical hosts

While this warning messaging doesn’t really affect a virtualized physical host after you’ve successfully P2V-ed it, I personally prefer clean Windows event logs because it makes troubleshooting errors in the future better.

Problem

You’ve successfully virtualized a physical host but notice that you continuously get a warning logged in your System logs:

Source: vmdebug

Type: Warning

Event ID: 3

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Solution

There’s actually a VMware KB for this: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1007652

Resolution

The virtual machine debug driver is not required in an ESX host. The driver is used for record/play functions in Fusion and Workstation products.

To prevent the message from appearing, browse to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\vmdebug and change the Start key from 1 to 4. This disables it.

The KB notes a different version than the one in my screenshot (7.3.3.2 vs 7.3.4.3) but I’ve tried editing the registry keys as noted in the KB and it does remove the warning.

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Fairly simple fix.

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