Database Maintenance causes error on SQL backup
We have three identical (except for names) domains set up, using BE 2010 R3. The backup setup is a standard GFS with full monthly, full weekly and differential daily. The full backups runs without any problems.
Now two of the nodes generate errors on the daily SQL-backup. "SQL Agent was not used to create the last full, differential or log backup of this database." Error code is E0000363. I've come so far as to tracing it to a backup that runs every day at 04:00 AM, five hours after our own backups run. It turns out that it is BE's own database maintenance that some how messes things up for two of our domains, but one is still working.
Now one thing that is a bit strange is that if one checks the backupset table in the databse msdb, the working node doesn't list any backup jobs that runs at 04:00 AM, but the two domains that don't work has those jobs listed.
One co-worker suggested that turning off the database maintenance would work but I'm dubious to that, seeing as one domain is in working condition. Database maintenance is enabled on all three domains.