Re: [Veritas-bu] Flashbackup restores and Multiple data streams
2008-04-10 09:50:27
If you are running multiple streams then your backup is
starting an individual job for each drive letter (C:, D:, Q: etc..) but you are
only restoring one rive at a time. That is your only option for
tape. If you are restoring from disk you can try running multiple restores
(one per drive letter etc..) to try and get the same restore time. This
isn't possible with data on the same tape.
-Jonathan
We use the Flashbackup feature of the Advanced Client to
backup several of our Windows 2003 file servers (5.1 MP6). We just finished up a
DR test and recovered all of the servers, however the restore times were less
than desirable. For instance, Server A has 6 drives that get backed in less than
10 hours total (600GB, about 800,000 files)…..all of the drives start getting
backed up at the same time (I’m assuming this is because we use the “allow
multiple data streams” option). However, in our DR test the restore of Server A
only restores 1 volume at a time……this adds up to 32 – 36 hours before the
server is completely available (6 drives to restore). I’ve read through the
Advanced Client guide and can’t find an explanation for why the restore only
does 1 drive at a time. The other tapes aren’t in use, we have tape drives
available. It does this for every Flashbackup restore.
Any ideas\explanations?
Jason
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