RE: RMAN & BCV/Flashcopy Question?

[Gene Sais]

Thanks Dennis for your suggestions.  So it appears in my environment, I am best off sticking w/ my trusty hot backup scripts.  Using RMAN for 3rd mirror splits doesn't appear to benefit me.  Using RMAN to backup to a 3rd mirror would be less efficient than using EMC BCV or IBM Flashcopy, as these services are done internally, not at the os level.

>>> [EMAIL PROTECTED] 02/14/03 11:44AM >>>
Gene - Hopefully someone will have better ideas than these, but I'll make a
couple of suggestions.
   RMAN can issue SQL commands to your target database, so you could try
having it issue the alter tablespace command. Then after you do the backup
you could register the backup with RMAN. Almost more effort than it is
worth.
   You might also consider using that extra disk space on the mirror as a
backup site for RMAN -- backup to disk then move to tape. You could compare
the various recovery scenarios and decide if this would enable you to
recover faster than a hot backup.



Dennis Williams
DBA, 40%OCP, 100% DBA
Lifetouch, Inc.
[EMAIL PROTECTED]

-----Original Message-----
Sent: Friday, February 14, 2003 9:59 AM
To: Multiple recipients of list ORACLE-L


I plan on using a product from IBM called Flashcopy, similar to EMC's BCV
(third mirror).  Typically, I put the tablespaces in hot backup via
scripting before splitting the third mirror.  How can RMAN be used in a
similar fashion?  Can RMAN put the db in a hot backup state so the third
mirror can be split and then backed up to tape?

Thanks,
Gene

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Author: DENNIS WILLIAMS
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