[Veritas-bu] NetBackup poor performance
2004-05-25 10:59:33
This is a multipart message in MIME format.
--=_alternative 00525B0A86256E9F_=
Content-Type: text/plain; charset="US-ASCII"
Mark,
Checkout the VERITAS NetBackup Performance Tuning for Version 3.2/3.4 UNIX
Operating Systems
http://ftp.support.veritas.com/pub/support/products/NetBackup_DataCenter/240733.pdf
This should apply to netbackup 4.5 and 5.0 also.
There is also a solaris 9 tuning doc located here:
http://seer.support.veritas.com/docs/264967.htm
We have a SUN e250 runing solaris 8.
This is what our settings are set to
# cat /opt/openv/netbackup/NET_BUFFER_SZ
262144
# cat /opt/openv/netbackup/db/config/NUMBER_DATA_BUFFERS
256
# cat /opt/openv/netbackup/db/config/NUMBER_DATA_BUFFERS_RESTORE
256
# cat /opt/openv/netbackup/db/config/SIZE_DATA_BUFFERS
262144
Your milage may vary. Your own settings could end up being quite different
than mine.
Karl
veritas-bu-admin AT mailman.eng.auburn DOT edu wrote on 05/25/2004 09:22:58 AM:
> 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
> _______________________________________________
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
--=_alternative 00525B0A86256E9F_=
Content-Type: text/html; charset="US-ASCII"
<br><font size=3>Mark,</font>
<br>
<br><font size=3>Checkout the VERITAS NetBackup Performance Tuning for
Version 3.2/3.4 UNIX Operating Systems</font>
<br><font
size=3>http://ftp.support.veritas.com/pub/support/products/NetBackup_DataCenter/240733.pdf</font>
<br><font size=2 face="sans-serif">This should apply to netbackup 4.5 and
5.0 also.</font>
<br>
<br><font size=2 face="sans-serif">There is also a solaris 9 tuning doc
located here:</font>
<br><font size=2
face="sans-serif">http://seer.support.veritas.com/docs/264967.htm</font>
<br>
<br><font size=2 face="sans-serif">We have a SUN e250 runing solaris 8.</font>
<br>
<br><font size=2 face="sans-serif">This is what our settings are set to</font>
<br><font size=2 face="sans-serif"># cat
/opt/openv/netbackup/NET_BUFFER_SZ</font>
<br><font size=2 face="sans-serif">262144</font>
<br><font size=2 face="sans-serif"># cat
/opt/openv/netbackup/db/config/NUMBER_DATA_BUFFERS</font>
<br><font size=2 face="sans-serif">256</font>
<br><font size=2 face="sans-serif"># cat
/opt/openv/netbackup/db/config/NUMBER_DATA_BUFFERS_RESTORE</font>
<br><font size=2 face="sans-serif">256</font>
<br><font size=2 face="sans-serif"># cat
/opt/openv/netbackup/db/config/SIZE_DATA_BUFFERS</font>
<br><font size=2 face="sans-serif">262144</font>
<br>
<br><font size=2 face="sans-serif">Your milage may vary. Your own settings
could end up being quite different than mine.</font>
<br>
<br><font size=2 face="sans-serif">Karl</font>
<br>
<br><font size=2><tt>veritas-bu-admin AT mailman.eng.auburn DOT edu wrote on
05/25/2004
09:22:58 AM:<br>
<br>
> I am struggling to grasp the use of NetBackup DC 4.5 on Solaris 8.<br>
> The only server is a V480 with a stand-alone SDLT 320 and an L8 tape<br>
> library having an LTO-2 drive.<br>
> <br>
> I went through the wizard and configured things for a simple test,<br>
> but it's really hard to tell what's going on and when.<br>
> <br>
> I eventually got a manual backup to run, and was surprised to see<br>
> the i/o to tape running about 5000KB/sec. Our current backup method,<br>
> ufsdump, gets about 15000KB/sec. Pretty big difference.<br>
> <br>
> So a Google search finds a posting from 2001 talking about an<br>
> undocumented method of improving NBU i/o performance by creating<br>
> files called "NUMBER_DATA_BUFFERS",
"SIZE_DATA_BUFFERS",
and<br>
> "NET_BUFFER_SZ".<br>
> <br>
> Are these files the way to go? And if so, why is this information<br>
> not explained and configured right up front?<br>
> <br>
> Thanks for any help.<br>
> Mark<br>
> -- <br>
> Motorola Personal Communications<br>
> Urbana-Champaign Design Center<br>
> sandrock AT urbana.css.mot DOT com<br>
> Voice: 217-384-8552<br>
> _______________________________________________<br>
> Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT
edu<br>
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu<br>
> <br>
</tt></font>
--=_alternative 00525B0A86256E9F_=--
|
|
|