2008 R2 VM's taking upto 30 minutes or more to shut down.

Hi All,

I'm having an issue with Windows 2008 R2 VM's taking a long time to shut down. This seems to take longer the more RAM they have allocated.

Can anyone tell me why this is happening and tell me if I can speed this up in any way?

The hosts are on ESX 4.0 U1 and one particular VM I'm having this issue with is on HW v7 and the tools are upto date. It has a 40Gb system disk and an additional 500Gb disk attached which is a vmdk on the same datastore as the system disk which is all on FC san.

Thanks

Mike.