06-24-2015 08:54 AM
We have Backup Exec 2015 backing up to a Deduplicated Disk Storage. Yesterday we had an issue arise in which I had to restore from the previous nights differential backups and I'm wondering if someone could help explain the behavior I saw during the restores.
Thanks!
Solved! Go to Solution.
06-25-2015 01:05 AM
Were you restoring from the Point in TIme Wizard or the Backup Set Wizard? - basically the point in time will assemble a synthetic view which includes the full meaning it is difficult to select only the differential files, which means it might have restored some of the full and differential as one restroe job. The Backup Set restore will only restore the differential data
If you chose one method for one job and one for the other it is possible that would also create a difference in performance.
06-24-2015 10:05 AM
Were these restores both from tape or disk? Deduplication restores from tape will take longer because of the rehydration process.
06-24-2015 10:50 AM
Both restores were from the deduplication disk.
06-24-2015 10:03 PM
06-25-2015 01:05 AM
Were you restoring from the Point in TIme Wizard or the Backup Set Wizard? - basically the point in time will assemble a synthetic view which includes the full meaning it is difficult to select only the differential files, which means it might have restored some of the full and differential as one restroe job. The Backup Set restore will only restore the differential data
If you chose one method for one job and one for the other it is possible that would also create a difference in performance.
06-25-2015 09:32 AM
For restore 1, I would asume it would only care about scanning the differential files not every single file and folder which is what it seemed to be doing.
For restore 2, are you sure that's the case? What you are saying is the log is basically lying to me which makes no sense to me. If a log says it "restored X files" I would assume it would have actually restored that exact amount of files.
Thanks!
06-25-2015 09:54 AM
Yes, I did use the Point in Time Wizard and going through both of the wizards right now I see what you are saying as I am only seeing the changed files in the Backup Set wizard. Looks like I chose incorrectly but at least I know for the future.
Thanks!