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The key is to put all your tablespaces into hot-backup mode prior to
breaking off the BCV. Then the copy you have on the BCV is just like if you
took an instant OS copy of all the files while doing a hot backup. When you
restore from the BCV, you'll simply roll forward through your archived redo
logs until the where you failed.
-----Original Message-----
From: Lee, Kenneth [mailto:Kenneth.Lee AT sbs.siemens DOT com]
Sent: Wednesday, October 30, 2002 9:01 AM
To: 'veritas-bu AT mailman.eng.auburn DOT edu'
Subject: [Veritas-bu] EMC BCV Question
First let me apologize for asking this question as it is only somewhat
related to NB. We are in the process of implementing EMC BCV to backing up
an Oracle database (500GB). I was told that you could create a BCV while
Oracle is live (no shutdown or hot backup mode required) and I agree with
this statement. What I am not sure of is can you roll-forward with this
BCV. For example, at 1:00, you snap your BCV and the production Oracle
continues to run (no stoppage). At 4:00, something bad happens to
production Oracle. You restore your BCV on top of production, can you
roll-forward the production logs up to 4:00? The reason I am puzzle is
because when you snap the BCV at 1:00, the Oracle database (BCV) is
startable but will go into recovery mode. It will rollback in-flight
transactions. Can you apply the production logs to this database to bring
it to 4:00?
Thanks,
Ken
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
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<P><FONT SIZE=3D2>The key is to put all your tablespaces into hot-backup =
mode prior to breaking off the BCV. Then the copy you have on the BCV=
=
is just like if you took an instant OS copy of all the files while doing a =
hot backup. When you restore from the BCV, you'll simply roll forward=
=
through your archived redo logs until the where you failed.</FONT></P>
<P><FONT SIZE=3D2>-----Original Message-----</FONT>
<BR><FONT SIZE=3D2>From: Lee, Kenneth [<A =
HREF=3D"mailto:Kenneth.Lee AT sbs.siemens DOT
com">mailto:[email protected].=
com</A>]</FONT>
<BR><FONT SIZE=3D2>Sent: Wednesday, October 30, 2002 9:01 AM</FONT>
<BR><FONT SIZE=3D2>To: 'veritas-bu AT mailman.eng.auburn DOT edu'</FONT>
<BR><FONT SIZE=3D2>Subject: [Veritas-bu] EMC BCV Question</FONT>
</P>
<BR>
<P><FONT SIZE=3D2>First let me apologize for asking this question as it is =
only somewhat</FONT>
<BR><FONT SIZE=3D2>related to NB. We are in the process of =
implementing EMC BCV to backing up</FONT>
<BR><FONT SIZE=3D2>an Oracle database (500GB). I was told that you =
could create a BCV while</FONT>
<BR><FONT SIZE=3D2>Oracle is live (no shutdown or hot backup mode required)=
=
and I agree with</FONT>
<BR><FONT SIZE=3D2>this statement. What I am not sure of is can you =
roll-forward with this</FONT>
<BR><FONT SIZE=3D2>BCV. For example, at 1:00, you snap your BCV and =
the production Oracle</FONT>
<BR><FONT SIZE=3D2>continues to run (no stoppage). At 4:00, something=
=
bad happens to</FONT>
<BR><FONT SIZE=3D2>production Oracle. You restore your BCV on top of =
production, can you</FONT>
<BR><FONT SIZE=3D2>roll-forward the production logs up to 4:00? The =
reason I am puzzle is</FONT>
<BR><FONT SIZE=3D2>because when you snap the BCV at 1:00, the Oracle =
database (BCV) is</FONT>
<BR><FONT SIZE=3D2>startable but will go into recovery mode. It will =
rollback in-flight</FONT>
<BR><FONT SIZE=3D2>transactions. Can you apply the production logs to=
=
this database to bring</FONT>
<BR><FONT SIZE=3D2>it to 4:00?</FONT>
</P>
<P><FONT SIZE=3D2>Thanks,</FONT>
<BR><FONT SIZE=3D2>Ken</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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