SQL Server Error : 15401 Details
SQL Server Error: 15401 Severity: 11 Event Logged or not: No Description: Windows NT user or group ‘%s’ not found. Check the name again. Severity 11 Description: Indicates that the given object or entity does not exist.
Reading sql server error log location from SQL Query
Identifying SQL Server Error Log File used by SQL Server Database Engine can be done by reading SQL Server Error Logs. DBA can execute the XP_READERRORLOG extended stored procedure to read the SQL Server Error Log and search for its location used by the instance of SQL Server.
USE master… Read the rest
xp_readerrorlog 0, 1, N'Logging SQL Server messages in file', NULL, NULL, N'asc'