RMAN / channels and device types

Hello,
I have a question.
In the RMAN documentation (for instance in "Oracle Database Backup and Recovery Advanced User's Guide 10g Release 2") one can find the description / instructions how
to allocate RMAN channels and define the device types.
There are 2x described device types - DISK and SBT (Tape).
My question is:
IS IT POSSIBLE TO USE A PIPE AS A RMAN DEVICE TYPE ?
If it is not possible to define direct, perhaps there is a possibility to define it
indirect and to use a pipe to write data.
Regards.
Neitour

Thank you for the link. Is it this RMAN 'duplicate database' option, what you
would like to recommend me to use?
I think, it is not exactly what I really need. For 'duplicate database' I will need
to have as a source a backup of the database and not a running productive
database.
Is it correct?
If it is, it is not what I'd like to do.
I'd like to make a copy of a productive running database, which is placed on ASM
storage, to another server creating such a way a database also placed on ASM
storage. I'd like to do it directly. I think the best possible way can be
RMAN / BACKUP --> PIPE --> RMAN / RESTORE.
The issue is - how can I configure RMAN to write BACKUP into a PIPE and
to read data for RESTORE from a PIPE.
Any ideas?
Regards
Neitour

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Hello Sir,
It is a very small problem that the more I study about RMAN I get more confused that what is the difference between Allocate Channel and Configure Channel.
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Hi,
As Already Aman and Hemant K Chitale .. described the difference..
Let me put up one thing one thing Ahead... !!
CONFIGURE CHANNEL takes the same options used to specify one-time options with the ALLOCATE CHANNEL command. You can configure generic channel settings for a device type, that is, a template that is used for any channels created based on configured settings for that device.
Example :-
Note that if you use CONFIGURE CHANNEL to specify generic channel settings for a device, any previous settings are discarded, even if the settings are not in conflict. For example, after the second CONFIGURE CHANNEL command, which specifies only the FORMAT for configured disk channels, the MAXPIECESIZE for the disk channel is returned to its default value:
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RUN
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http://download-uk.oracle.com/docs/cd/B28359_01/backup.111/b28270/rcmconfb.htm
Study or Go through Slow and Study... you can understnad ever thing...
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Hi,
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full backup -- RMAN> RUN {
ALLOCATE CHANNEL d1 DEVICE TYPE DISK;
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}2> 3> 4>
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RMAN> RUN
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sql 'ALTER DATABASE MOUNT';
RESTORE DATABASE;
SWITCH DATAFILE ALL;
RECOVER DATABASE;
release channel c1;
}2> 3> 4> 5> 6> 7> 8> 9> 10>
using target database control file instead of recovery catalog
allocated channel: c1
channel c1: SID=129 device type=DISK
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channel c1: restoring control file
channel c1: restore complete, elapsed time: 00:00:01
output file name=/oradata/test02/control01.ctl
output file name=/oradata/test02/control02.ctl
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sql statement: ALTER DATABASE MOUNT
released channel: c1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
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Getting the error ORA-27001: unsupported device type

Hi ,
While I am starting to backup via RMAN I am getting the following error. I kept my backup files on my disk and configured the channel as
RMAN> SHOW DEFAULT DEVICE TYPE;
RMAN configuration parameters are:
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
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RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
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ORA-19554: error allocating device, device type: DISC, device name:
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SQL> SELECT * FROM V$BACKUP_DEVICE;
DEVICE_TYPE
DEVICE_NAME
SBT_TAPE
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Thanks

RMAN> SHOW DEFAULT DEVICE TYPE;
RMAN configuration parameters are:
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
RMAN-03002: failure of restore command at 12/19/2006
17:00:36
ORA-19554: error allocating device, device type:
DISC, device name:> ORA-27001: unsupported device type
Is it possible that you have line similar to the following when you enter
show all;
CONFIGURE CHANNEL DEVICE TYPE DISC FORMAT <path>

RMAN channels

O.S. Linux
Oracle version: 10g/11g
Hi,
I've newbie with Oracle RMAN and in particular I did not understand the concept of channels (ALLOCATE CHANNEL TYPE disk......).
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Edited by: Raf Royal on Aug 30, 2012 2:14 AM
Edited by: Raf Royal on Aug 30, 2012 2:17 AM

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I found this example:
RMAN> RUN
ALLOCATE CHANNEL c1 DEVICE TYPE DISK FORMAT = '/backup/df/%U';
ALLOCATE CHANNEL c2 DEVICE TYPE DISK FORMAT = '/backup/cf/%U';
ALLOCATE CHANNEL c3 DEVICE TYPE sbt;
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Hi,
When I try to allocate a channel for backup in RMAN its taking huge time now.
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Regards,
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Hi, please try debug the rman process with the next command and get us more information.
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Hi friends;
I need one advice,Before start my rman backup i allocate channel like
run
ALLOCATE CHANNEL C1 device type 'sbt_tape' ;
ALLOCATE CHANNEL C2 device type 'sbt_tape' ;
ALLOCATE CHANNEL C3 device type 'sbt_tape' ;
ALLOCATE CHANNEL C4 device type 'sbt_tape' ;
ALLOCATE CHANNEL C5 device type 'sbt_tape' ;
ALLOCATE CHANNEL C6 device type 'sbt_tape' ;
ALLOCATE CHANNEL C7 device type 'sbt_tape' ;
BACKUP SCRIPT HERE
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RELEASE CHANNEL C2;
RELEASE CHANNEL C3;
RELEASE CHANNEL C4;
RELEASE CHANNEL C5;
RELEASE CHANNEL C6;
RELEASE CHANNEL C7;
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Thanks
Helios

Hi,
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Thanks

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CONFIGURE DEVICE TYPE DISK PARALLELISM 2;
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Check Nicks Reply:
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RMAN / channels and device types

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