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Arup,
Thanks
for the reply. So I am assuming that the Standby database is in archivelog
mode?
Good
idea performing the backup on the standby rather than the Primary. Our
Primary is supposed to grow to 3TB, so your idea has merit. And our
servers will be in two different buildings, so it makes sense. In case of
a disaster, we switch to the Standby and recover the Primary when it becomes
available again, right?
Thanks
again.
Tom Mercadante
Oracle Certified Professional
Tom,
You should perform backups from the Standby
database, regular RMAN backups, no need to shutdown the database. Make sure
you backup the archived log files from there too. Contrary to what the docs
might _imply_, I use the word "imply" rather than "state", since the docs have
been kind of ambiguous, the archivedlog backups from the standby are
perfectly alright to be used for recoveries..
You could use the RMAN backup on the primary, but
why? You would rather want to offload the CPU cycles for RMAN to the standby
database. In case of a failure in the primary, your first option is to get the
files from standby and recover them. If standby is down too (as in case of a
complete disaster), you would reinstate the standby backup files to primary
and you will be ok.
We are using it to backup out 7 TB OLTP
database.
HTH.
Arup
----- Original Message -----
Sent: Wednesday, September 03, 2003
2:29 PM
Subject: Oracle Standby Database
Backups.
All,
We are in the beginning
stages of designing a database with Oracle Standby capability. The
initial size of the database will be 600-800 Gig. The proposed database will be run on a IBM P690 with
a mirrored fail-over machine. Two separate machines with separate
disk. We are considering
using Oracle Standby to have the database available as much as
possible.
Do I need to perform regular backups of the Standby database?
Sounds like a silly question, but how do I do this? Using Rman?
Or do I shut it down and perform a cold backup? I will definitely use
Rman on the primary database. Just curious what you all would
suggest.
Thanks in advance!
Tom Mercadante
Oracle Certified Professional
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