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[Veritas-bu] Tuning Netbackup
2001-11-24 01:34:23
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Tim,
I am interested in what sort of "retries" you were getting before changing
the tcp_?_interval. Were you seeing 174's at all?
We are seeing intermittent 174's and are getting little help from Veritas in
resolving them. We are also seeing the network "pause" for short periods,
where some daemons and functions are returning errors like "network protocol
error" and "unable to connect to vmd". These are hiccups after which
functionality returns and the backups complete on the next try after the
174.
After looking at this Veritas doc and reading your email, I am wondering if
they are releated . . . ?
Thanks!
Scott
-----Original Message-----
From: Tim McMurphy [mailto:Tim.McMurphy AT telus DOT com]
Sent: Friday, November 23, 2001 11:14 AM
To: Jason Ahrens; veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Tuning Netbackup
On Veritas' site it says lower it to 1 second (1000) but on Sun's site it
says NEVER set this lower than 1 minute (60000).
I set ours to 1 minute and it did help clear up some retries we were having
on a nightly basis.
-----Original Message-----
From: Jason Ahrens [mailto:Jason.Ahrens AT telus DOT com]
Sent: Friday, November 23, 2001 11:55 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: RE: [Veritas-bu] Tuning Netbackup
I just read through this document, and have a question.
One of the tuning items it suggests is lowering the TCP_TIME_WAIT_INTERVAL
(TCP_CLOSE_WAIT_INTERVAL). I am curious why lowering this value would help
the performance of NetBackup? Or why how it would adversly affect the system
by leaving it at the default 4 minute?
Jason
> -----Original Message-----
> From: Tim Allen [mailto:tallen201 AT hotmail DOT com]
> Sent: November 22, 2001 19:59
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: Re: [Veritas-bu] Tuning Netbackup
>
>
>
> http://seer.support.veritas.com/docs/240733.htm
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
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<TITLE>RE: [Veritas-bu] Tuning Netbackup</TITLE>
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<P><FONT SIZE=3D2>Tim, </FONT>
</P>
<P><FONT SIZE=3D2>I am interested in what sort of "retries" =
you were getting before changing the tcp_?_interval. Were you =
seeing 174's at all? </FONT></P>
<P><FONT SIZE=3D2>We are seeing intermittent 174's and are getting =
little help from Veritas in resolving them. We are also seeing =
the network "pause" for short periods, where some daemons and =
functions are returning errors like "network protocol error" =
and "unable to connect to vmd". These are hiccups after =
which functionality returns and the backups complete on the next try =
after the 174.</FONT></P>
<P><FONT SIZE=3D2>After looking at this Veritas doc and reading your =
email, I am wondering if they are releated . . . ?</FONT>
</P>
<P><FONT SIZE=3D2>Thanks!</FONT>
</P>
<P><FONT SIZE=3D2>Scott</FONT>
</P>
<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Tim McMurphy [<A =
HREF=3D"mailto:Tim.McMurphy AT telus DOT com">mailto:Tim.McMurphy AT telus DOT
com</A>=
]</FONT>
<BR><FONT SIZE=3D2>Sent: Friday, November 23, 2001 11:14 AM</FONT>
<BR><FONT SIZE=3D2>To: Jason Ahrens; =
veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>Subject: RE: [Veritas-bu] Tuning Netbackup</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>On Veritas' site it says lower it to 1 second (1000) =
but on Sun's site it</FONT>
<BR><FONT SIZE=3D2>says NEVER set this lower than 1 minute =
(60000).</FONT>
</P>
<P><FONT SIZE=3D2>I set ours to 1 minute and it did help clear up some =
retries we were having</FONT>
<BR><FONT SIZE=3D2>on a nightly basis.</FONT>
</P>
<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Jason Ahrens [<A =
HREF=3D"mailto:Jason.Ahrens AT telus DOT com">mailto:Jason.Ahrens AT telus DOT
com</A>=
]</FONT>
<BR><FONT SIZE=3D2>Sent: Friday, November 23, 2001 11:55 AM</FONT>
<BR><FONT SIZE=3D2>To: veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>Subject: RE: [Veritas-bu] Tuning Netbackup</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>I just read through this document, and have a =
question.</FONT>
</P>
<P><FONT SIZE=3D2>One of the tuning items it suggests is lowering the =
TCP_TIME_WAIT_INTERVAL</FONT>
<BR><FONT SIZE=3D2>(TCP_CLOSE_WAIT_INTERVAL). I am curious why lowering =
this value would help</FONT>
<BR><FONT SIZE=3D2>the performance of NetBackup? Or why how it would =
adversly affect the system</FONT>
<BR><FONT SIZE=3D2>by leaving it at the default 4 minute?</FONT>
</P>
<P><FONT SIZE=3D2>Jason</FONT>
</P>
<P><FONT SIZE=3D2>> -----Original Message-----</FONT>
<BR><FONT SIZE=3D2>> From: Tim Allen [<A =
HREF=3D"mailto:tallen201 AT hotmail DOT com">mailto:tallen201 AT hotmail DOT
com</A>]<=
/FONT>
<BR><FONT SIZE=3D2>> Sent: November 22, 2001 19:59</FONT>
<BR><FONT SIZE=3D2>> To: veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>> Subject: Re: [Veritas-bu] Tuning =
Netbackup</FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> </FONT>
<BR><FONT SIZE=3D2>> <A =
HREF=3D"http://seer.support.veritas.com/docs/240733.htm"; =
TARGET=3D"_blank">http://seer.support.veritas.com/docs/240733.htm</A></F=
ONT>
<BR><FONT =
SIZE=3D2>_______________________________________________</FONT>
<BR><FONT SIZE=3D2>Veritas-bu maillist - =
Veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu"; =
TARGET=3D"_blank">http://mailman.eng.auburn.edu/mailman/listinfo/veritas=
-bu</A></FONT>
</P>
<P><FONT =
SIZE=3D2>_______________________________________________</FONT>
<BR><FONT SIZE=3D2>Veritas-bu maillist - =
Veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2><A =
HREF=3D"http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu"; =
TARGET=3D"_blank">http://mailman.eng.auburn.edu/mailman/listinfo/veritas=
-bu</A></FONT>
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