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allocating channel for backup, help [message #226612]

Sun, 25 March 2007 21:18

aboodlardy
Messages: 80
Registered: November 2006
Location: India

Member

HI
I have configure the rman as follows
configure channel 1 device type disk format 'e:\arch\b_%S';
configure channel 2 device type disk format 'e:\arch\b_%S';
configure channel 3 devive type disk format 'e:\back\b_%S';

But when i start taking backups, it is using only one channel.

RMAN> backup datafile 4;

Starting backup at 26-MAR-07
configuration for DISK channel 2 is ignored
configuration for DISK channel 3 is ignored
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=12 devtype=DISK
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00004 name=E:\ORACLE\ORADATA\MYDATA2\DRSYS01.DBF
channel ORA_DISK_1: starting piece 1 at 26-MAR-07
channel ORA_DISK_1: finished piece 1 at 26-MAR-07
piece handle=E:\ARCH\B-21 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 26-MAR-07

Please help , i am using different channels bcoz ,same time i want to backup to two places, help.

regards
Abood

[Updated on: Mon, 26 March 2007 07:55]

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Re: allocating channel for backup, help [message #226754 is a reply to message #226612]

Mon, 26 March 2007 07:56

ebrian
Messages: 2794
Registered: April 2006

Senior Member

What two locations do you want to backup to ? You've got two of the same locations labeled as 'arch' and one labeled as 'back'.

If you had two disk formats specified as:

configure channel 1 device type disk format 'e:\back1\b_%S';
configure channel 2 device type disk format 'e:\back2\b_%S';

and you specified a PARALLELISM value for DISK device type:

RMAN> CONFIGURE DEVICE TYPE DISK PARALLELISM 3;

then you could back in both locations in parallel as:

RMAN> backup copies 2 datafile 4;

[Updated on: Mon, 26 March 2007 08:41]

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