AWR and RMAN report

Hello
in 10g R2 in my AWR report RMAN is the top:
Top 5 Timed Events                                         Avg %Total
~~~~~~~~~~~~~~~~~~                                        wait   Call
Event                                 Waits    Time (s)   (ms)   Time Wait Class
------------------------------ ------------ ----------- ------ ------ ----------
RMAN backup & recovery I/O          152,712         624      4 ###### System I/O
db file sequential read              28,410          25      1   56.4   User I/O
control file sequential read         47,027          24      1   53.2 System I/O
CPU time                                             21          47.2
control file parallel write           2,103           7      4   16.7 System I/O


Statistic Name                                       Time (s) % of DB Time
------------------------------------------ ------------------ ------------
RMAN cpu time (backup/restore)                          350.5        790.9
sql execute elapsed time                                 35.3         79.7
DB CPU                                                   20.9         47.2
inbound PL/SQL rpc elapsed time                          16.9         38.0
PL/SQL execution elapsed time                             6.7         15.2
Can we say that we should change some parameters for RMAN to be less consumer? What for example?

Thank you.

Published by: user522961 on Sep 24, 2010 03:04

Hello
You can try to reduce the channels and the degree of parallel...

Is backup optimization on?

and encryption...

concerning

Tags: Database

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