BE2012 - GRT and Deduplication
Under the advice of Symantec with problems with Backup Exec 2010 deduplication and GRT backups it was recommended to migrate to Backup Exec 2012.
I have an existing case open with symantec now for Backups containing GRT to deduplicated storage, specfically VM backups with File GRT only(Application GRT is just not working so we are ignoring that for now)
We have a MMS Server with a 18TB Deduplication store with 48GB of RAM, and a CASO server with 21TB of deduplicated storage with another 48GB of RAM.
We are finding that small VM's will backup, but large VM's(440GB seems to be the magical number where stuff starts going wrong) that job rates slow down to an absolute crawl. Symantec are currently investigating.
Under advice for testing we also backed up the same large Virtual Machines to backup to disk. Immedialty we saw big improvments in speed(around 2GB/min to dedupe, 4-7GB/min to B2), then were instructed to try optimised deduplication to the dedupe store, this is where we also encountered problems, a 1TB backup set is currently running at 19 hours to deuplicate to deduplicated storage going at a lazy 220mb/min.
I'm just asking if anyone else is experiencing these problems? I was told the changes in puredisk for Backup Exec 2012 removed a lot of the issues with GRT based backups to it, but I'm finding this doesn't appear to be the case.