[Veritas-bu] Restricting tapes to a single stream

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Is it possible to setup a policy in such a way that any stream will not
use a tape previously used within another stream of the same backup?

Background:
We run our Production DB backup using 3 streams.   This backup is used
for doing refreshes to test and training databases.   On occasion during
the original backup we'll see a status 52 forces one of the streams to
timeout and do a new try which is successful.  Unfortunately the new try
on that stream may occur after one of the other 2 streams has finished
with a tape so it grabs that tape for this stream.   This is OK but on
restore it won't even schedule the 3rd stream until after the stream
that originally used the tape has finished restoring so of course it
causes a long delay in refresh.   I didn't see a setting in the policy
definition so I'm wondering if there is a bp.conf or other setting that
would prevent the use of the same tape within two different streams of
the same backup?

Jeffrey C. Lightner
Unix Systems Administrator
DS Waters of North America
678-486-3516



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<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">Is it =
possible to setup a policy in such a way that any stream will not use a =
tape previously used within another stream of the same =
backup?</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 =
FACE=3D"Arial">Background:</FONT></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial">We =
run our Production DB backup using 3 streams.&nbsp;&nbsp; This backup is =
used for doing refreshes to test and training databases.&nbsp;&nbsp; On =
occasion during the original backup we&#8217;ll see a status 52 forces =
one of the streams to timeout and do a new try which is =
successful.&nbsp; Unfortunately the new try on that stream may occur =
after one of the other 2 streams has finished with a tape so it grabs =
that tape for this stream.&nbsp;&nbsp; This is OK but on restore it =
won&#8217;t even schedule the 3</FONT></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"><SUP><FONT SIZE=3D2 =
FACE=3D"Arial">rd</FONT></SUP></SPAN><SPAN LANG=3D"en-us"></SPAN><SPAN =
LANG=3D"en-us"><FONT SIZE=3D2 FACE=3D"Arial"> stream until after the =
stream that originally used the tape has finished restoring so of course =
it causes a long delay in refresh.&nbsp;&nbsp; I didn&#8217;t see a =
setting in the policy definition so I&#8217;m wondering if there is a =
bp.conf or other setting that would prevent the use of the same tape =
within two different streams of the same backup?</FONT></SPAN><SPAN =
LANG=3D"en-us"></SPAN><SPAN LANG=3D"en-us"></SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"></SPAN><A NAME=3D""><SPAN =
LANG=3D"en-us">Jeffrey C. Lightner</SPAN></A></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us">Unix Systems =
Administrator</SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us">DS Waters of North =
America</SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us">678-486-3516</SPAN></P>

<P ALIGN=3DLEFT><SPAN LANG=3D"en-us"></SPAN></P>

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