[Veritas-bu] NetBackup poor performance
2004-05-25 10:22:58
I am struggling to grasp the use of NetBackup DC 4.5 on Solaris 8.
The only server is a V480 with a stand-alone SDLT 320 and an L8 tape
library having an LTO-2 drive.
I went through the wizard and configured things for a simple test,
but it's really hard to tell what's going on and when.
I eventually got a manual backup to run, and was surprised to see
the i/o to tape running about 5000KB/sec. Our current backup method,
ufsdump, gets about 15000KB/sec. Pretty big difference.
So a Google search finds a posting from 2001 talking about an
undocumented method of improving NBU i/o performance by creating
files called "NUMBER_DATA_BUFFERS", "SIZE_DATA_BUFFERS", and
"NET_BUFFER_SZ".
Are these files the way to go? And if so, why is this information
not explained and configured right up front?
Thanks for any help.
Mark
--
Motorola Personal Communications
Urbana-Champaign Design Center
sandrock AT urbana.css.mot DOT com
Voice: 217-384-8552
|
<Prev in Thread] |
Current Thread |
[Next in Thread>
|
- [Veritas-bu] NetBackup poor performance,
Mark Sandrock <=
|
|
|