Hi,@Vanitha Dodla
Run and find the SQL Server version information.
SELECT @@VERSION
Is your SQL Server set up for high availability?
Is this error occurring randomly or on a regular basis?
Was the SQL Server performing a data import when it went down?
How many connections are there in the database? Whether the OLEDB driver is a third-party driver?
Could you please confirm the latest error log from the time of the recent failure?
Please provide the detail about the event error.
To diagnose the problem, you can use SQL Server Profiler. Please pay attention to "Errors and Warnings".