RE: To reduce RMAN backup time
- From: "Roger Xu" <roger_xu@xxxxxxxxxxx>
- To: "Oracle-L@Freelists. Org (E-mail)" <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 16 Jun 2005 15:04:40 -0500
I am trying to find out why "2 channel / 2 filesystem / 2 controller" does not
faster than "1 channel " ?
Anything I need to set in RMAN? pool size? buffer size?
-----Original Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[ mailto:oracle-l-bounce@xxxxxxxxxxxxx]On Behalf Of Roger Xu
Sent: Thursday, June 16, 2005 2:27 PM
To: Oracle-L@Freelists. Org (E-mail)
Subject: To reduce RMAN backup time
Hi list,
I am trying to reduce RMAN backup time by streaming backup to 2 different
filesystem on two difference controller.
But it ended up taking a little bit longer than backup to 1 filesystem.
Any comments?
Thanks,
Roger Xu
P.S.
run {
allocate channel t1 type disk format '/oback/obckp1/datafiles/PR2_%s_%p.data';
allocate channel t2 type disk format '/oback/obckp2/datafiles/PR2_%s_%p.data';
backup
(database include current controlfile);
backup
format '/oback/redo-logs/PR2_%s_%p.logs'
archivelog all;
}
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