backup exec 12 - what am i doing wrong (media sets and devices)
Posted on 2009-04-14
I have an external hard drive for daily backups, and running backup exec 12 on a server.
Monday i have two jobs running... they're full backups, resetting archive bit.
Monday - databases
Monday - shares
I then have Tuesday, Wednesday, Thursday, and Friday backups, each has a database and a share backup (i.e. Tuesday - databases; Tuesday - shares; Wednesday - databases, etc.)...
Tuesday --> Friday both database and share backups are set as differential backups.
This works with the 'shares' (the Monday backup will be ~80GB, and then Tuesday --> Friday will be ~1.5GB). I've noticed the 'databases' backup is more or less the same size (80GB) each day, Monday to Friday. not sure if you can 'differential' backup a database, so i never really worried about it.
Now it's on a 1TB external hard drive. Assuming 100GB per day databases (500GB for the week), and 100GB on Monday for shares, and then 5GB tuesday --> friday (120GB for the week), we should have AMPLE room to spare.
I'm noticing that some backup jobs are failing though... the external hard drive has 10GB free.
In "Media", each backup job uses its own backup media set (i.e. there's a Monday - Databases media set, a Tuesday - Databases media set, etc. etc.).
Overwrite protection is set to 6 days, and infinite append period.
What ami doing wrong? Why is the drive running out of space?