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тАО11-15-2009 10:56 AM
тАО11-15-2009 10:56 AM
RMAN Backup for Oracle
Is RMAN backup for oracle work for raw file system and not with cooked file system ?
Using RMAN we can perform only cold backup by shutting down database. Is it correct or incorrect ?
Thanks,
Shiv
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тАО11-15-2009 11:07 AM
тАО11-15-2009 11:07 AM
Re: RMAN Backup for Oracle
here a short description what is a RMAN and what's his purpose.
http://en.wikipedia.org/wiki/RMAN
mikap
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тАО11-15-2009 08:40 PM
тАО11-15-2009 08:40 PM
Re: RMAN Backup for Oracle
RMAN can be used for both cooked filesystem and raw chunks.
2)Using RMAN we can perform only cold backup by shutting down database. Is it correct or incorrect ?
Cold backup is a consistent backup .RMAN requires that the database be started and mounted to perform a cold backup.
shutdown immediate;
startup mount;
backup database;
Regards,
Aneesh
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тАО11-16-2009 06:06 AM
тАО11-16-2009 06:06 AM
Re: RMAN Backup for Oracle
RMAN will shut the database down and restart it as part of the backup job. It will also backup your control files and archive logs.
RMAN can perform a hot backup, but the database must be in archivelog mode.
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тАО11-16-2009 08:03 AM
тАО11-16-2009 08:03 AM
Re: RMAN Backup for Oracle
For COLD backup (and to keep a consistent backup) you need to shut down your database. This can be done with RMAN.
see documentation
http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/backrec.htm#i1007289
Regards
Jean-Luc
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тАО11-16-2009 03:10 PM
тАО11-16-2009 03:10 PM
Re: RMAN Backup for Oracle
Money is not a concern for us at all as we are a big enterprize and don't bother for cost for right technology.
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тАО11-16-2009 03:36 PM
тАО11-16-2009 03:36 PM
Re: RMAN Backup for Oracle
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тАО11-16-2009 09:29 PM
тАО11-16-2009 09:29 PM
Re: RMAN Backup for Oracle
Are there any tool used for hot backup in consistent manner ?
Yes there are ..
A) Oracle Secure Backup (From Oracle)
B) Offcourse RMAN, You can use RMAN for hot backup efficiently (withoutn taking database is begin backup mode) .But the only limitation in RMAN is it doesn`t have Media Management Library ,that means if you want to take backup in tape media you man need to depend any other backup software like HP Dataprotector with RMAN integration or Vertias Netbackup ..etc.
RMAN + HP Dataprotector (with Oracle integration) is a better combination
Aneesh
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тАО11-17-2009 04:10 AM
тАО11-17-2009 04:10 AM
Re: RMAN Backup for Oracle
RMAN is the right choice. But you need to do some setup:
1- set init.ora parameters:
i) log_archive_start = TRUE
ii) log_archive_dest =
2- shutdown database and restart:
sqlplus '/ as sysdba'
SQL> shutdown immediate;
Cold Backup
SQL> startup mount;
SQL> alter database archivelog;
SQL> alter database open;
Best Regards,
Eric Antunes