[Veritas-bu] Slow catalog backups on T2000 running Solaris 10

Subject:	[Veritas-bu] Slow catalog backups on T2000 running Solaris 10
From:	Don Klebba <donklebba AT quickenloans DOT com>
To:	<veritas-bu AT mailman.eng.auburn DOT edu>
Date:	Tue, 20 Nov 2007 15:01:06 -0500

We recently replaced the hardware that our master server runs on. We went
from a V880 running Solaris 8 to a T2000 running Solaris 10. We're running
Netbackup 5.1MP4. Our catalog backups used to take no more than 2 hours to
complete, now they're running 4 hours and longer. When I run a Iostat, I can
see between 6000, and 11,000 kb/s going to the tape drives. (LTO2). When I
run a OS backup of the master, I can see roughly 30,000 kb/s.

We already disabled tcp_fusion, per Symantec's request, but it doesn't seem
to help.


Does anyone have any ideas?

Maybe some kernel tweeks for the T2000 and solaris 10.
-- 
Don Klebba
Quicken Loans
Storage Management Team
DonKlebba AT quickenloans DOT com <mailto:DonKlebba AT quickenloans DOT com>
phone: (734)805-7791
cell: (734)634-7486 

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