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@team health.com To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> Sent by: cc: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: INET: [EMAIL PROTECTED] 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: [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).