Environment: SQL 2005
Symptom: Scheduled SQL maintenance plan to do partial backup failed. Got two message logged in SQL Server log:
Error: 3041, Severity: 16, State: 1
BACKUP failed to complete the command BACKUP DATABASE master WITH DIFFERENTIAL. Check the backup application log for detailed messages.
Cause: Master database does not support partial backup. So, if the task is for "Differential" backup, "master" database should not be included.
Solution: Open the plan details, in the "Database(s)" section make sure database that needs to be backup are explicitly selected, instead of having "All databases" checked.