Question: What is the RMAN backup
optimization feature and how does it work?
Answer:
The RMAN backup optimization feature is controlled by these
commands:
RMAN>
configure backup optimization on;
RMAN> configure backup optimization off;
When you turn on backup optimization, all backup commands will
skip backups of any file if it has not changed and if it has already
been backed up to the allocated device type. A file can be any
dbf file, an archived redo log or an RMAN "backup set". Here
are some of the main features of the RMAN configure backup
optimization on command:
- In order to back up the flash recovery area itself using
RMAN, you must set configure backup optimization to ON.
- Setting backup optimization on stops the backups of
Read Only Tablespaces (ROT), whenever a valid backup of the
tablespace already exists in the RMAN catalog database.
- If backup optimization is enabled, then RMAN skips
backups of archived logs that have already been backed up to the
allocated device.
|
|
|
| |
|
Burleson is the American Team
Note:
This Oracle
documentation was created as a support and Oracle training reference for use by our
DBA performance tuning consulting professionals.
Feel free to ask questions on our
Oracle forum.
Verify
experience!
Anyone
considering using the services of an Oracle support expert should
independently investigate their credentials and experience, and not rely on
advertisements and self-proclaimed expertise. All legitimate Oracle experts
publish
their Oracle
qualifications.
Errata?
Oracle technology is changing and we
strive to update our BC Oracle support information. If you find an error
or have a suggestion for improving our content, we would appreciate your
feedback. Just
e-mail:
 and include the URL for the page.
Copyright © 1996 - 2020
All rights reserved by
Burleson
Oracle ®
is the registered trademark of Oracle Corporation.
|
|
