Hi, In one of our production site, I implemented RMAN backup and recovery scripts. I
did the following way.
Take a full backup using RMAN, the following things will be backed up
datafiles,Archive logs files, controlfile. I didn't use the catalog database. I used
the database's controlfile instead. After this for next 6 days take incremental backup
ie archivelog files and control files.
Once in a week(lets us say Sunday) we are taking a full Database online backup. From
Monday to Sunday incremental backup.
Let us assume that my db crashes on thursday. I restore the full database backup from
Sunday and start applying the incremental backup till wed and the rest of logs that
are generated(provided they are there) then my I can bring the database upto the point
where it had crashed.
This particular method was tested and it is successfully running in the production
site. The DBA now in the production site has managed to take the incremental backup
twice a day(early morning and late evening) he schedules them & copies the files from
the disk to tapes and keeps them.
Recovery depends what type of failure u face. In this db controlfiles,redolog files
are mirrored from OS. The load is easily distributed.It has four HDD controllers with
a combination of RAID 0 and RAID 1, with MSCS in WinNT.
RMAN saves time and disk space.
If we use the traditional Oracle backup utility(ALter tablespace tbl begin backup) we
need the exact space that is occupied for Datafile.
If we integrate with Media Management software with RMAN, then u can directly write
into tapes.
--
On Wed, 21 Mar 2001 07:22:01
Jack C. Applewhite wrote:
>Don,
>
>You don't state whether or not you're getting the archived
>redo logs at each Level 0 and 1 backup as well as the 3
>archive-logs-only backups. If not, you probably should.
>Also, if recovery speed will be important, those incremental
>backups should be cumulative, not differential. However,
>cumulative takes more storage than differential - always the
>tradeoffs!
>
>Jack
>
>--------------------------------
>Jack C. Applewhite
>Database Administrator/Developer
>OCP Oracle8 DBA
>iNetProfit, Inc.
>Austin, Texas
>www.iNetProfit.com
>[EMAIL PROTECTED]
>
>
>-----Original Message-----
>Donald
>Bricker
>Sent: Tuesday, March 20, 2001 3:31 PM
>To: Multiple recipients of list ORACLE-L
>
>
>We are in the midst of starting to use RMAN for our Backup
>and Recovery. The backups I have put into place are Once a
>week a Level 0 full backup, three times a week Level 1
>incremental and three times archive logs only.
>Can anyone suggest some different recovery scenarios to
>test? Or if I missed any backups.
>
>Thanks
>
>Don Bricker
>Information Systems Analyst
>Illinois Environmental Protection Agency
>1021 North Grand Avenue East
>Mail Code #32
>Springfield, IL 62794-9276
>[EMAIL PROTECTED]
>(217) 558-2290
>
>--
>Please see the official ORACLE-L FAQ: http://www.orafaq.com
>--
>Author: Jack C. Applewhite
> INET: [EMAIL PROTECTED]
>
>Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
>San Diego, California -- Public Internet access / Mailing Lists
>--------------------------------------------------------------------
>To REMOVE yourself from this mailing list, send an E-Mail message
>to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
>the message BODY, include a line containing: UNSUB ORACLE-L
>(or the name of mailing list you want to be removed from). You may
>also send the HELP command for other information (like subscribing).
>
Get 250 color business cards for FREE! at Lycos Mail
http://mail.lycos.com/freemail/vistaprint_index.html
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: C.S.Venkata Subramanian
INET: [EMAIL PROTECTED]
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
