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Query on Cloning DB across Platform [message #499806]

Wed, 16 March 2011 05:02

OraKaran
Messages: 183
Registered: March 2008
Location: United Kingdom

Senior Member

Hello

As I understand we can't clone database across platform using Rman, as Rman backup taken on say Unix is useless to be recovered on Windows

Though I think of Export and Import, will copying the datafiles, logfiles, controlfile will serve purpose for cloning across platform?

Note that I do not mean Transportable tablespace here. Only copying cold backup across platform

Regards,
OraKaran

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Re: Query on Cloning DB across Platform [message #499824 is a reply to message #499806]

Wed, 16 March 2011 06:19

Mahesh Rajendran
Messages: 10707
Registered: March 2002
Location: oracleDocoVille

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Account Moderator

RMAN can copy database across platform, as long as they are same endian.
Look into convert database.
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/dbxptrn.htm#CHDCFFDI

Edit:
Missed the fact that you are using 9i.
This feature is not available in 9i.

To answer your question.
>>Though I think of Export and Import, will copying the datafiles, logfiles, controlfile will serve purpose for cloning across platform?

Export/import is logical. Means, you copy(export) only the data. Not the database files.
You create a new database and import only data.
You need to prereate the tablespaces etc.

[Updated on: Wed, 16 March 2011 06:36]

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Re: Query on Cloning DB across Platform [message #499904 is a reply to message #499806]

Wed, 16 March 2011 11:32

OraKaran
Messages: 183
Registered: March 2008
Location: United Kingdom

Senior Member

Hello Mahesh

First of all thanks for the tip on 'Convert Database'. It is really amazing.
I have used TTS across platform but never knew about 'Covert Database'.

Though I am unable to use it as of now it will be really useful for me in the future

Thanks for confirming on EXP / IMP as well

One question remains is, Can I copy files (dbf, ctl, rdo) across platform and clone the database (using cold backup)?. Though I suspect answer would be mostly 'NO' I would like to confirm it.

Please suggest

Regards,
OraKaran

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Re: Query on Cloning DB across Platform [message #499905 is a reply to message #499904]

Wed, 16 March 2011 11:39

Mahesh Rajendran
Messages: 10707
Registered: March 2002
Location: oracleDocoVille

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Account Moderator

Cold backup will not work across OS

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Re: Query on Cloning DB across Platform [message #500020 is a reply to message #499806]

Thu, 17 March 2011 04:45

OraKaran
Messages: 183
Registered: March 2008
Location: United Kingdom

Senior Member

Thanks Mahesh

For resoving the queries as well as the tip on 'Convert Database'

Regards,
OraKaran

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