We had an IT staffer that thought like that. We let them go since the 100 bucks a hour they were spending on "solving" that issue cost more than the storage space or tape. Sometimes the bean counter is right.
-> Did you try compressing the 7GB then backing up the compressed image?
I set up a backup routine using NT Backup (Windows 2000 PC) to backup one 7GB folder every day. I set it up to run as an Incremental backup, and I also set it up to run as a Differential backup. Both ways, my 7GB backup file grew to over 40GB in a relatively short period of time.
If one method records changes from the first full backup, and the other records changes from only the last backup then why is the backup getting so big? Is it because it doesn't purge old data?
I switched to making a full backup of the folder once a day, with a different schedule running every day. This allows me access to the latest 7GB version of the folder but forces me to store 49GB of data (7GB x 7 days of the week).
Am I wrong for expecting the incremental or differential backup to maintain the folder size but update the backup file with the latest changes? Is this why most people rely on third party backups?
Thanks for the help. My system currently works but it's costing me too much space. I know space is cheap but I prefer efficiency too.