I have two Poweredge 2850 connected to a MD3000i SAN. There are only two virtual servers running a File Server and Exchagne 2003 server. We have the file server running on one ESX host and the exchange server running on the other.
I am using the internal Broadcom nics, one going to the storage network and one going to the production network. I am plugging those into a Dell Poweredge 2724 switch. Last night I enabled jumbo framing on the ESX hosts, Switch and MD3000, but we are still having the issue. I am running ESXi 4 Essentials.
For the past two weeks people's access to the file servers has been freezing. Initially I thought it was the exchange 2003 server causing this issue becuase the problem started happening 4 -5 days after we virtualized exchange.
I have narrowed down the issue to where when a user with a large PST file > 5gb tries to open the file or run a repair on the file, the file server locks up. The VM becomes unresponsive, as best as I can tell Exchange is working okay, but it seems like that server becomes slow.
Any ideas or methods to troubleshoot would be great.