Is it possible to take a full backup without shutting down an instance?(10g

Hi. everyone.
Is it possible to take a full backup without shutting down an instance?
The db version is 10gr2.
As far as I know, in order to take a full backup of a database,
one need to shutdown a database.
Our db environment is a RAC environment which has two nodes.
Yesterday, I heard from a hardware vendor that we do not need to shutdown
instances(2-nodes) in order to take a full backup.
Best Regards.

Hi,
>>As far as I know, in order to take a full backup of a database, one need to shutdown a database.
In fact, a database operating in NOARCHIVELOG mode is necessary to shutdown the database in order to perform a full backup (Cold Backup), but otherwise a database that is operating in ARCHIVELOG mode, then is possible to perform a full database backup with the database in a open state. (Hot Backup)
For more information see if these links below can help you:
Oracle Backup and Recovery
http://www.oracle.com/technology/deploy/availability/htdocs/BR_Overview.htm
Oracle Backup and Recovery FAQ
http://orafaq.com/faqdbabr.htm
Cheers

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