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RE: RMAN question(s)

From: Allen, Brandon <Brandon.Allen_at_OneNeck.com>
Date: Tue, 2 Oct 2007 16:04:20 -0700
Message-ID: <04DDF147ED3A0D42B48A48A18D574C4508B6E908@NT15.oneneck.corp>


Just an update on this - after running the compressed backups on this database and another one for 3 weeks now, they are consistently running much faster than before the compression - a little less than half the time they used to take, and the size of the backups is consistently reduced by about 87%. Pretty nice, thanks for the tip Robert!

Now to test the restores before I implement on my production database . . .

-----Original Message-----

From: Allen, Brandon

In case anyone is interested - I did a test of the 10g "as compresssed" backupset on a 285GB databases and here are the results:

W/O Compression: backup size = 280GB, backup time = 2 to 10 hours with an average of about 7.5 hours over the past 3 months (this goes to a disk staging area and later to tape on a Netbackup server with a LOT of other backup activity so there is a wide variance in backup times depending on what else is running at the same time)

W/ Compression: backup size = 36GB, backup time = 2.9 hours (only tested once so far)

Environment: AIX 5.3, Oracle 10.2.0.2, Netbackup 5.1 MP4, BaanIV ERP application data

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http://www.freelists.org/webpage/oracle-l Received on Tue Oct 02 2007 - 18:04:20 CDT

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