Backup - Controlling order of execution - Netbackup

From: Westerdale, John (jwesterdale@HOWOST.com)
Date: Wed Oct 29 2003 - 09:13:50 EST


Folks,

We are backing up an Oracle server with lots of directories (/u01 thru /u20)
some of which are empty, some full. They range from 32K up to 40 GB. Two big
ones, 6 midsize ones, and balance are small.

In Veritas Netbackup (4.5) under Solaris 9, have defined many "New Streams",
and set the policies so we use both Drives in our Tape library, but we end up
with the big jobs all ending up on the same tape drive. One drive finishes in
20 Minutes, the other in 3 Hours.

This imbalance could be eliminated if I could prescribe the order of
directories when the policy is executed.

How NetBackup determines the order of the streams is still a mystery. We tried
altering dates on directories, changing order in the Policy/Files list, etc.
Order still is inscrutable.

One contstraint we have is that I can't use more than one policy, so I cant
use multiple policies and storage Units.

One policy, two drives, 4 jobs per drive, 8 jobs at a time go active (in
uncontrollable order) and 12 get queued initially.

Storage Unit is set to accept 4 multiplexes jobs per drive, with 2 concurrent
drives.

Thanks for your review!

John Westerdale
Howmedica Osteonics Corp.
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