Glenn,
My understanding is that you need to "account for" the time it takes to
start and complete the BCV split. The only way to do this is to put the
tablespace in hot backup mode so that you can "recover" the tablespace when
you bring the database up on the copied system.
If you do not do this, then the tablespaces are all out of sync with the
control file, and you have no way of recovering them.
This is different from losing a mirror disk. In this case, the raid
hardware is simply going to recover a complete volume for you.
What we want to do here is to recover *individual files* using the Oracle
software.
hope this helps
Tom Mercadante
Oracle Certified Professional
-----Original Message-----
Sent: Monday, September 24, 2001 1:40 PM
To: Multiple recipients of list ORACLE-L
It is my understanding that the common implementation of copying an Oracle
database on an EMC using BCVs is this;
1) put the source database in BEGIN BACKUP mode for all the tablespaces,
2) break the mirror,
3) put tablespaces in END BACKUP mode
4) recover on target, or backup the files.
Question:
Why is it necessary to put the database in 'hot backup' mode when splitting
a BCV? If it is just like splitting a mirror, why do you need the database
in hot backup mode at all? Wouldn't it be the same as losing one side of a
mirrored pair? When that happens, no extra processing is needed.
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