SQL Daily Incremental Log backup failed
I have problems when I try to backup SQL servers.
Following the http://www.symantec.com/business/support/index?pag..., I have created backup jobs for each one of these servers. The first one is running weekly and perform a full backup of system and non-system SQL databases and the second runs daily and performs transaction logs backup.
Full backups are completed successfully but incremental logs are succesfull too but only for 3 or 4 or 5 days and then failed with the following message:
Final error: 0xe0000363 - The Backup Exec SQL Agent was not used to create the last full, differential, or log backup of this database. You must use the SQL Agent to run a full backup before you can run a differential backup or transaction log backup. Final error category: Resource Errors
followed by the following errors
If I run manually a full backup everything returns to normal until the next error occurence
I know very well (double checked) that no other backup jobs are running on these servers (no native or third party SQL backup) and further more I even had to disable the sql agent service just to make sure it will not be triggered by something hidden but the problem is still there. I don't know what else to try so any help is much appreciated.