No, it is not necessary to switch or archive the log file at every tablespace. I, too, run the switch and archive commands _after_ the last tablespace.
Hemant At 10:26 AM 19-03-03 -0800, you wrote:
I use switch logfile exclusively within my hot backups (because at the time I wrote the scripts I was unaware of the difference) but also check V$LOG to make sure the archive write is complete before proceeding with the backup. I has worked fine on my 8.x production database for the last 4+ years (including daily recoveries to build a Reporting instance).
I do have a question though. What is the purpose of switching the logfile for each tablespace? I do it once, after all of the tablespaces have been backed up. Am I missing something?
Mike Hand Polaroid Corp.
-----Original Message----- Sent: Wednesday, March 19, 2003 11:49 AM To: Multiple recipients of list ORACLE-L
A "switch logfile" isn't mandatory and an "archive log current" is highly recommended. The "switch logfile" command would return immdiately and would not wait for the archiver to complete archiving the log. The "archive log current" would return only after the archiver has completed it's job. You must backup the archivelogs from the first one generated after the first "alter tablespace begin backup" to the first one after the last "alter tablespace end backup". You are also backing up the controlfile which is also highly recommended.
I normally use a combination of multiple "switch logfile", "archive log" commands and a Unix "sleep" command and then exclude the last archivelog from the backup just to be safe. Hemant -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Hand, Michael T 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).
Hemant K Chitale My personal web site is : http://hkchital.tripod.com
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Hemant K Chitale 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).
