I hope you will be getting the below said error in sql server error log

C:\>net helpmsg 121

The semaphore timeout period has expired

look this KBA http://support.microsoft.com/kb/325487 for more...

Hi,

We can use Dynamic Management Views to monitor performance

'sys.dm_os_performance_counters' This DMV makes it possible to query a view directly to capture the SQL Server counters related to the instance

Regards,

Jagadeesan