Sometimes when starting one of the Winshuttle Windows services, the service may fail. In the Windows Event application log, there will be a SQL not available error.
A SQL not available error can indicate several issues:
The SQL server drives are full.
The SQL server is reachable, but an issue is causing SQL not to respond.
Check the SQL server and ensure all the SQL services are started.
Check the drives on the SQL server and ensure the disks are not full.
Check the Event Viewer on the SQL server for any other errors.
Applications sometimes capture more detailed information on the error. Check Winshuttle logs for a reference to the error. A good target is the log related to the service that is failing. For instance, if the Winshuttle Worker service fails, check the Winshuttle Worker logs.