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In Solaris, without an st.conf file, the drives will run at default
settings. This means fixed block sizes. The NB guide says specifically you
should use variable block sizing. If you put the st.conf (and
reload/reboot) file right, you make it difficult to read the old tapes with
their fixed block sizes.
There's a touch file you can make:
/usr/openv/netbackup/db/config/FIXED_LENGTH_BLOCKS
That will allow you to read the old tapes.
Touch the file, restart NB, restore the file, remove the touchfile, restart
NB.
Only use the touchfile for the duration of the restore.
On the plus side, using the correct st.conf will reduce media errors, in my
experience.
Always keep a st.conf.orig file and check st.conf after every NB & OS
upgrade (& sg.conf). It's amazing how frequently this file is stomped.
HTH - Mark
-----Original Message-----
From: Douglas Ritschel [mailto:dritschel62 AT yahoo DOT com]
Sent: Wednesday, November 27, 2002 1:01 PM
To: veritas-ng
Subject: [Veritas-bu] /kernel/drv/st.conf NetBackup DataCenter 3.4
After installing NetBackup DataCenter 3.4, all lines
in the /kernel/drv/st.conf file are commented out. As
far as I know, the NetBackup Installation manual does
not mention st.conf.
According to the Device Config Manual the Tape Drives
should be defined in the st.conf file. So, what are
the implications of defining the drives in st.conf,
after backups have already been run with a fully
commented out st.conf file?
__________________________________________________
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<TITLE>RE: [Veritas-bu] /kernel/drv/st.conf NetBackup DataCenter =
3.4</TITLE>
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<P><FONT SIZE=3D2>In Solaris, without an st.conf file, the drives will =
run at default settings. This means fixed block sizes. The =
NB guide says specifically you should use variable block sizing. =
If you put the st.conf (and reload/reboot) file right, you make it =
difficult to read the old tapes with their fixed block =
sizes.</FONT></P>
<P><FONT SIZE=3D2>There's a touch file you can make:</FONT>
<BR><FONT =
SIZE=3D2>/usr/openv/netbackup/db/config/FIXED_LENGTH_BLOCKS</FONT>
</P>
<P><FONT SIZE=3D2>That will allow you to read the old tapes.</FONT>
</P>
<P><FONT SIZE=3D2>Touch the file, restart NB, restore the file, remove =
the touchfile, restart NB.</FONT>
</P>
<P><FONT SIZE=3D2>Only use the touchfile for the duration of the =
restore.</FONT>
</P>
<P><FONT SIZE=3D2>On the plus side, using the correct st.conf will =
reduce media errors, in my experience.</FONT>
</P>
<P><FONT SIZE=3D2>Always keep a st.conf.orig file and check st.conf =
after every NB & OS upgrade (& sg.conf). It's amazing how =
frequently this file is stomped.</FONT></P>
<P><FONT SIZE=3D2>HTH - Mark</FONT>
</P>
<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Douglas Ritschel [<A =
HREF=3D"mailto:dritschel62 AT yahoo DOT com">mailto:dritschel62 AT yahoo DOT
com</A>]<=
/FONT>
<BR><FONT SIZE=3D2>Sent: Wednesday, November 27, 2002 1:01 PM</FONT>
<BR><FONT SIZE=3D2>To: veritas-ng</FONT>
<BR><FONT SIZE=3D2>Subject: [Veritas-bu] /kernel/drv/st.conf NetBackup =
DataCenter 3.4</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>After installing NetBackup DataCenter 3.4, all =
lines</FONT>
<BR><FONT SIZE=3D2>in the /kernel/drv/st.conf file are commented out. =
As</FONT>
<BR><FONT SIZE=3D2>far as I know, the NetBackup Installation manual =
does</FONT>
<BR><FONT SIZE=3D2>not mention st.conf. </FONT>
</P>
<P><FONT SIZE=3D2>According to the Device Config Manual the Tape =
Drives</FONT>
<BR><FONT SIZE=3D2>should be defined in the st.conf file. So, what =
are</FONT>
<BR><FONT SIZE=3D2>the implications of defining the drives in =
st.conf,</FONT>
<BR><FONT SIZE=3D2>after backups have already been run with a =
fully</FONT>
<BR><FONT SIZE=3D2>commented out st.conf file? </FONT>
</P>
<P><FONT =
SIZE=3D2>__________________________________________________</FONT>
<BR><FONT SIZE=3D2>Do you Yahoo!?</FONT>
<BR><FONT SIZE=3D2>Yahoo! Mail Plus - Powerful. Affordable. Sign up =
now.</FONT>
<BR><FONT SIZE=3D2><A HREF=3D"http://mailplus.yahoo.com"; =
TARGET=3D"_blank">http://mailplus.yahoo.com</A></FONT>
<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>
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