RE: A RMAN question

Thanks Jay.....actually our clients want it that way that the cloned DB is backed up instead of the production DB.
I think u r right about RMAN getting confused when it reads the controlfiles

the next day for taking an incremental backup since they will have been replaced
overnight. But I am using a recovery catalog database, so I dont understand why
won't RMAN just go and take an incremental backup of only the changed blocks

anyway instead of bothering about whats there in the control files of the target
database.
Does this also mean that in case I have to recreate the controlfile of the target
database, I can never do an incremental backup during the first go ??

Regards,
Samir

Samir Sarkar
Oracle DBA
SchlumbergerSema
Email : samir.sarkar_at_nottingham.sema.slb.com

            ssarkar2_at_slb.com
Phone : +44 (0) 115 - 957 6028
EPABX : +44 (0) 115 - 957 6418 Ext. 76028 Fax : +44 (0) 115 - 957 6018

-----Original Message-----
Sent: 21 March 2002 14:58
To: Multiple recipients of list ORACLE-L

I think RMAN will have problems with the incremental backup. When it looks at the control files for the cloned db, they will have no record of a previous backup.

What you are doing is a bit unusual in that the database on server A (which would be considered production) should be backed up. And if you are backing up the database on server A, why bother to backup the datbase on Server B? Especially if you are refreshing it each night.

It sounds like you should really be setting up a standby database.

Jay

> -----Original Message-----
> From: SARKAR, Samir [SMTP:Samir.SARKAR_at_nottingham.sema.slb.com]
> Sent: Thu, March 21, 2002 10:38 AM
> To: Multiple recipients of list ORACLE-L
> Subject: RE: A RMAN question
>
> Hi Dennis,
>
> Thanks for replying. I guess I have not been able to make my question
> clear.
> You see, I need to backup only the cloned database on server B and NOT the
>
> database on server A. My scenario is as follows :
>
> The main db on server A is a partitioned data warehouse system and we r >
planning to copy over the data files and the control files every night to
> the cloned db on server B. Thereafter, we will b taking a RMAN backup of
> the
> cloned db on server B only.
> As I said, RMAN writes the backup info on the target database's control
> files
> when it takes the backup. I also said that we plan to take a full backup
> on
>
> Sundays and incremental backup on the other days.
>
> My confusion was :
>
> Say, RMAN takes a backup of the database on the cloned db on server B
> on a Monday. On MOnday night as per procedure, the control files and
> the database files from the main db on server A are copied over to server
>
> B. On Tuesday, will RMAN b happy taking the incremental backup again
> of the cloned db on server B even though it finds that the control files
> r different than the ones it wrote the backup info to the previous day ??
> Or will it get confused and prompt for a FULL backup ??
>
> Any ideas from anybody would b appreciated a lot.
>
> Regards,
> Samir
>
>
> Samir Sarkar
> Oracle DBA
> SchlumbergerSema
> Email : samir.sarkar_at_nottingham.sema.slb.com
> ssarkar2_at_slb.com
> Phone : +44 (0) 115 - 957 6028
> EPABX : +44 (0) 115 - 957 6418 Ext. 76028
> Fax : +44 (0) 115 - 957 6018

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-- 
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-- 
Author: SARKAR, Samir
  INET: Samir.SARKAR_at_nottingham.sema.slb.com

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