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Hi Paul,
Maybe you can increase the "media mount timeout" to 5 minutes.
HTH
Fabrice
-----Message d'origine-----
De : Paul Sobey [mailto:Paul.Sobey AT aleagroup DOT com]
Envoy=E9 : mercredi 23 janvier 2002 22:53
=C0 : veritas-bu AT mailman.eng.auburn DOT edu
Objet : [Veritas-bu] NetBackup + MSSQL
Hi Everyone,
I have just added a MSSQL class to my NetBackup server, and have added =
my
first server. The server contains around 127 databases, totalling
approximately 12GB.
While performing a test backup, I noticed that each new database stream
took an average of three minutes before any data was actually written =
to
tape. When I looked at the server, I discovered that NetBackup was
unloading and reloading the tape into the robot between databases. Is =
this
normal? Losing 127 x 3 minutes each time I back up this server amounts =
to
an awful lot of wasted time during the backups! I noticed that when I =
added
a second SQL server to the class, during the period when both servers =
were
backing up concurrently the reloading behaviour didn't occur because =
Media
Manager didn't have a chance to unload the tape. I looked for a way of
streaming multiple databases from the same server to achieve the same
effect, but the STRIPES command in the SQL directive batch file seems =
to
refer to multiple stripes of a single database.
Can anyone offer some advice to a NetBackup newbie? I feel like I'm =
missing
something obvious...
Using 3.41 on NT4 with an LTO autoloader.
Cheers,
Paul
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
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5.5.2653.12">
<TITLE>RE: [Veritas-bu] NetBackup + MSSQL</TITLE>
</HEAD>
<BODY>
<P> <FONT SIZE=3D2>Hi =
Paul,</FONT>
</P>
<P><FONT SIZE=3D2>Maybe you can increase the "media mount =
timeout" to 5 minutes.</FONT>
</P>
<P><FONT SIZE=3D2>HTH</FONT>
</P>
<P><FONT SIZE=3D2>Fabrice</FONT>
</P>
<P><FONT SIZE=3D2>-----Message d'origine-----</FONT>
<BR><FONT SIZE=3D2>De : Paul Sobey [<A =
HREF=3D"mailto:Paul.Sobey AT aleagroup DOT com">mailto:Paul.Sobey AT aleagroup
DOT com=
</A>]</FONT>
<BR><FONT SIZE=3D2>Envoy=E9 : mercredi 23 janvier 2002 22:53</FONT>
<BR><FONT SIZE=3D2>=C0 : veritas-bu AT mailman.eng.auburn DOT edu</FONT>
<BR><FONT SIZE=3D2>Objet : [Veritas-bu] NetBackup + MSSQL</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>Hi Everyone,</FONT>
</P>
<P><FONT SIZE=3D2>I have just added a MSSQL class to my NetBackup =
server, and have added my</FONT>
<BR><FONT SIZE=3D2>first server. The server contains around 127 =
databases, totalling</FONT>
<BR><FONT SIZE=3D2>approximately 12GB.</FONT>
</P>
<P><FONT SIZE=3D2>While performing a test backup, I noticed that each =
new database stream</FONT>
<BR><FONT SIZE=3D2>took an average of three minutes before any data was =
actually written to</FONT>
<BR><FONT SIZE=3D2>tape. When I looked at the server, I discovered that =
NetBackup was</FONT>
<BR><FONT SIZE=3D2>unloading and reloading the tape into the robot =
between databases. Is this</FONT>
<BR><FONT SIZE=3D2>normal? Losing 127 x 3 minutes each time I back up =
this server amounts to</FONT>
<BR><FONT SIZE=3D2>an awful lot of wasted time during the backups! I =
noticed that when I added</FONT>
<BR><FONT SIZE=3D2>a second SQL server to the class, during the period =
when both servers were</FONT>
<BR><FONT SIZE=3D2>backing up concurrently the reloading behaviour =
didn't occur because Media</FONT>
<BR><FONT SIZE=3D2>Manager didn't have a chance to unload the tape. I =
looked for a way of</FONT>
<BR><FONT SIZE=3D2>streaming multiple databases from the same server to =
achieve the same</FONT>
<BR><FONT SIZE=3D2>effect, but the STRIPES command in the SQL directive =
batch file seems to</FONT>
<BR><FONT SIZE=3D2>refer to multiple stripes of a single =
database.</FONT>
</P>
<P><FONT SIZE=3D2>Can anyone offer some advice to a NetBackup newbie? I =
feel like I'm missing</FONT>
<BR><FONT SIZE=3D2>something obvious...</FONT>
</P>
<P><FONT SIZE=3D2>Using 3.41 on NT4 with an LTO autoloader.</FONT>
</P>
<P><FONT SIZE=3D2>Cheers,</FONT>
<BR><FONT SIZE=3D2>Paul</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>
</P>
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