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Former Member
Mar 16, 2011 at 02:08 PM

Slow Backup after Upgrade to Oracle11g + BRTools 7.20 (rman_RATE)



a few days ago we had this configuration:

OS: HP-UX 11.31

Oracle database

with brtools 7.10 Patchlevel 30

We are using Symantec Netbackup for Backup.

In the util-file we are setting this extra rman-parameters for backup:

rman_channels = 24

rman_filesperset = 4

rman_RATE = 5K

(i know, that rman_rate shouldnt be alright, but it works for us to slow a little bit the speed)

The backup was working fine with about 100mb/s.

After upgrading to Oracle 11g + brtool 7.20 Patchlevel 10, the backupporcess takes a veeeeeeeery long time.

We saw in the netbackup-gui that speed ist about 5kb/s ...

I think that the rman_RATE parameter is now (with 7.20) working correct.

Does anyone have similiar troubles after upgrading to newer brtools (and/or Oracle11g) ?

I doesnt find any bugfix/release-notes, that the "function" of rman_RATE was changed?

When we changed the rman_RATE to 100m the backup is working fine.

Best Regards

Edited by: Patrick Baldinger on Mar 16, 2011 3:09 PM