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control file autobackup format changing [message #474939] Thu, 09 September 2010 15:48 Go to next message
muktha_22
Messages: 356
Registered: December 2009
Senior Member
Hi,

Need clarifications:

1) why we can't set format for controlfile backup other than %F? (Without specifying %F).

2) Is Manually taking controlfile backup uses the same format as autobackup?
Can we set different format for manual backup?

3) which format is default one - %F or % U? (Different manual shows different)

4) which type of format is being used mostly in the production database.

Thanks in advance
Re: control file autobackup format changing [message #474947 is a reply to message #474939] Fri, 10 September 2010 00:41 Go to previous messageGo to next message
John Watson
Messages: 4102
Registered: January 2010
Location: Global Village
Senior Member
Question 2: you can use any format you like:
C:\Users\john\home>rman target /

Recovery Manager: Release 11.2.0.1.0 - Production on Fri Sep 10 06:38:52 2010

Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

connected to target database: JW (DBID=955106381)

RMAN> backup current controlfile format 'c:\tmp\controlfile.backup';

Starting backup at 10-SEP-10
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=406 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
channel ORA_DISK_1: starting piece 1 at 10-SEP-10
channel ORA_DISK_1: finished piece 1 at 10-SEP-10
piece handle=C:\TMP\CONTROLFILE.BACKUP tag=TAG20100910T063920 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 10-SEP-10

RMAN>

[edit: typo]

[Updated on: Fri, 10 September 2010 00:41]

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Re: control file autobackup format changing [message #475002 is a reply to message #474947] Fri, 10 September 2010 13:02 Go to previous messageGo to next message
muktha_22
Messages: 356
Registered: December 2009
Senior Member
Hi John,

Thanks, but any idea on other questions?
Re: control file autobackup format changing [message #475014 is a reply to message #475002] Fri, 10 September 2010 14:21 Go to previous messageGo to next message
John Watson
Messages: 4102
Registered: January 2010
Location: Global Village
Senior Member
I don't understand the purpose of your third and fourth questions. For the first question, you need to consider the command
restore controlfile from autobackup;
and think about how it can work, given that you run it in nomount mode, when the instance has access to nothing more than the parameter file and the executables.
Re: control file autobackup format changing [message #476302 is a reply to message #474947] Wed, 22 September 2010 09:48 Go to previous message
edgefree
Messages: 30
Registered: July 2010
Location: Toronto
Member
Sounds right. But it has to be fixed name, which may not a good solution during daily works. If I remember right, for control file backup, automatical naming only accepts %F format.

As the latter reply, we need to consider 'restore' command works since 'restore controlfile' only works with autobackup or specified file. So if using fixed name, need to specify it too when restore it.
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