| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Mailing Lists -> Oracle-L -> Re: Opinions on B&R scenarios
If the database crash causes media failure of your archive destination or your online log destination, then you can only recover the database upto the last archivelog availability, and you would need to open the database with resetlogs. This is true for both scenarios.
Assuming no media failures, in the scenario 2, you can always recover upto the point of the last archive log, and then apply the online redo log file to perform a complete recovery. So you colleague is right. Both of them are practically the same, except in scenario 2, your database needs to be down for the backup.
Regards
Raj
Rick_Cale_at_team
health.com To: Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
Sent by: cc:
root_at_fatcity.c Subject: Opinions on B&R scenarios
om
October 23,
2002 11:15 AM
Please respond
to ORACLE-L
Hi DBAs,
A co-worker and I disagree on impact of slightly different B&R scenarios and I would like your thoughts.
Environment for both scenarios: Oracle 8.1.6, WinNt, Archivelog mode, not using RMAN
Scenario 1:
I do standard Hot Backup using
BEGIN BACKUP
OCOPY ...
END BACKUP
.....
If database crashes I perform media recovery then recover database.
Scenario 2:
Co-worker shuts down database and copy all files to backup directory.
Restarts database backup
If database crashes restore backup files then apply the
archive logs.
Co-worker says both scenarios are the same. I think scenario 1 results in no loss where scenario 2 results in the loss of data that was in the online redo logs.
Any thoughts on this?
Also what is the minimum system/object priviledges a user needs to perform
B&R. I would like to create a user with only those
privs necessary for B&R.
Thanks
Rick
-- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: Rick_Cale_at_teamhealth.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-LReceived on Wed Oct 23 2002 - 13:01:08 CDT
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: Rajesh.Rao_at_jpmchase.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (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).
 |
 |