if you duplex mandatory and one server destination fails..is fixed...the time lag for the db to become aware of the now-available second mandatory location can be lengthy.
I have witnessed a test where it took 11 Minutes. that's a loooong time, when you are waiting for the db to "figure out" that everything is fixed and available to restart.... same type of symptoms as a full archive log dest location, but longer recovery/awareness time. hth ross -----Original Message----- Sent: Thursday, December 06, 2001 1:29 PM To: Multiple recipients of list ORACLE-L Is anyone using the LOG_ARCHIVE_DUPLEX_DEST parameter? Any problems with it? We are on Oracle 8.1.6 on Compaq Tru64. On our ERP 150-gig. database, we are currently doing a cold backup weekly. This means that we are very dependent on archive logs. - Recovery time isn't a big concern. In the event of a failure, recovery time isn't that critical. Loss of a week of work would be. - We have tried hot backups successfully on smaller databases, but we found that once we issue ALTER TABLESPACE BEGIN BACKUP there was often a delay of hours for that command to complete. So we gave up on hot backups. - We are starting to work with RMAN and feel in the long run this will be an ideal solution. Thanks to everyone for answering my newby RMAN questions. - Recently Oracle has added a feature to duplex the archive log files. This sounds like it would lessen our archive log vulnerability. However, it causes my sys admin more work, so I would appreciate some feedback before I add this burden to his work. Thanks for any thoughts you care to share. Dennis Williams DBA Lifetouch, Inc. [EMAIL PROTECTED] -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: DENNIS WILLIAMS 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). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mohan, Ross 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).
