Error Description from SUMMARY.txt file of service pack upgrade : Machine : < ;server_name>; Product : Client Components Error : MSP Error: 29549 Failed to install and configure assemblies C:\Program Files\Microsoft SQL Server\90\NotificationServices\9.0.242\Bin\microsoft.sqlserver.notificationservices.dll in the COM+ catalog. Error: -2146233087 Error message: Unknown error 0x80131501 Error description: The Transaction Manager is not available. (Exception from HRESULT: 0x8004D01B) ————— Other errors logged in Windows Event logs:   System Log Error: 7024: The Distributed Transaction Coordinator (MS DTC) […]

Error in windows event logs: [sqsrvres] CheckQueryProcessorAlive: sqlexecdirect failed [sqsrvres] printODBCError: sqlstate = HYT00; native error = 0; message = [Microsoft][ODBC SQL Server Driver]Timeout expired  —————————- Suggestions from MSDN forum link: Reference link: http://social.msdn.microsoft.com/Forums/en-US/sqldisasterrecovery/thread/e5b8d938-e529-40f5-bdaa-601a8f6d7aca/ From the error it looks like there was issue with your network. Make sure you have a dedicated Heartbeat Network configured and that it is designated as such in Cluster Administrator. The public facing network can be configured for both Public […]