rman parallel processes

From: Joe Smith <joe_dba_at_hotmail.com>
Date: Wed, 19 Dec 2007 09:26:54 -0600
Message-ID: <BLU108-W18FA549A443EDF1CF85BE3975C0@phx.gbl>

Does it make any sense to run 4 processes for a rman full database backup when you have configured only 1 default channel?  

The channel is a disk and the backup files are all going to that same disk. CONFIGURE DEVICE TYPE DISK PARALLELISM 4; # default  

CONFIGURE CHANNEL 1 DEVICE TYPE DISK FORMAT '/u01/backup/oracle_sid/bu.d%d.t%t.s%s.p%p' MAXPIECESIZE 1 G;    

Is this going to run faster or the fact of a single disk will slow it down?  

thanks.  

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Received on Wed Dec 19 2007 - 09:26:54 CST