Highlighted

Backup to Tape, duplicate to Dedupe Disk Opinions?

Hey Guys,

I have upgraded from Backup Exec 2010R3 with just backing up to Tape, to Backup Exec 2012 with a dedupe disk store, AVVI Backups, and duplicate backup jobs from dedupe to tape.

The issue i have is that backups to tape previously ran at 2500MB/Min+ to tape, but now using 2012, backing up to dedupe disk runs at about 1200MB/Min and then once that completes, the duplicate to tape runs at about 250MB/Min as it needs to re-hydrate the data, and then copy to tape. Pretty terrible that the tape speeds are so slow because of that process, hence backups that used to complete in 1h30min, now take 9+ hours to complete.

I had a thought, and wanted to get anyone's opinion.

What if i backup to Tape, and then from tape, run a duplicate job to the Dedupe store. That way backups will be fast, and on tape already, then hopefully from tape to dedupe store, speeds will be much faster as it won't have to re-hydrate the backups. What issues or concerns does anyone foresee with this scenario. One question i have is if i want to restore data, can i do a restore from the disk duplicate job, rather than from the primary tape backup job?

1 Solution

Accepted Solutions
Highlighted
Accepted Solution!

I don't see a problem with

I don't see a problem with what you are trying to, but it seems counter-intuitive.  You should be able to use both sets of backups to do your restore.  Do test it because some users reported earlier that BE seems to prefer the second set of backups which in your proposed scenario is the dedup'ed set.

View solution in original post

4 Replies
Highlighted
Accepted Solution!

I don't see a problem with

I don't see a problem with what you are trying to, but it seems counter-intuitive.  You should be able to use both sets of backups to do your restore.  Do test it because some users reported earlier that BE seems to prefer the second set of backups which in your proposed scenario is the dedup'ed set.

View solution in original post

Highlighted

Thanks for the reply,

Thanks for the reply, although it seems counterintuitive, it kind of makes sense considering that you will not have to suffer through the slow backup to tape performance due to the re-hydration of dedupe data to tape. Although i'm not sure how multiple backups will work with multiple jobs and one tape drive.

Highlighted

This is no problem.  You can

This is no problem.  You can run a series of backtup jobs onto one tape.  See this document

How to back up multiple servers to a single series of tapes in Backup Exec 2012

Ran a test as suggested, and

Ran a test as suggested, and the results were outstanding. See the attachment. However this was an AVVI backup, with no GRT.