Differential/Incremental backup not working properly
Hello everyone!
I'm using BE 2010 R2 and got the following issue.
I make B2D full backup(reset archive bit)(Overwrite only), and then immediately try to make a differential/incremental backup.
The same backup list for both full and incr/diff is used; otherwise different media sets for both backups are used(configurated to unlimited append).
The dif/inc backup(7 servers, 97 GB), following by full backup start to fill space up to insane 140+ GB (I stopped the process, cause it was way too long)
I tried various configs of dif/inc backups(archive bit/time of modification) and etc.
To my mind If I made full backup, then immediately made incremental then it's gonna be like some kilobytes. Obviously something is wrong with my configuration. How do I make dif/inc backups work properly?
Thanks in advance!
Keep in mind that when backing up System State, a full backup is always performed regardless of the backup type that is selected. This System State full backup behaviour has been present in Backup Exec since the inception of System State for the Windows Operating System.
Hopefully this additional fact clears up the unexpectedly high backup size during incremental backups.
With that said, modifying the backup and restore behaviour of System State is discussed during the elaboration phase of every Backup Exec release. And that is no different for the next release that is in development. In fact, for the current BE 2012 release a couple of System State restore enhancements were introduced. One is that a System State option so that System Files are no longer overwritten during restore unless they have changed; in previously releases all System Files were always overwritten. Also, for a full-incremental chain, only the last System State incremental backup (actually a full) is only restored. These enhancements were targeted to decreasing restore time.
Thank you for investigating and responding so quickly. Hope that this information proves helpful.