RE: Question about RMAN Datafile + Archivelog Backups

From: Mark W. Farnham <>
Date: Wed, 2 Dec 2009 16:54:18 -0500
Message-ID: <>

So it might be misleading to a na´ve user if the command description said it backed up archives, but of course then it wouldn’t in noarchivelog mode. Interesting point, Robert.  

Also of course, if you want RMAN to be able to maximally automatic for recoveries then you need to backup the archives via RMAN so it knows where they are already and you don’t have to tell it. But there is utility in backing up the archive logs at the OS level. If you’ve got a complete backup in RMAN but the wheels fall off, but you also have tape sets (or DVDs or even JBOD) with all the archives outside of RMAN, then you can still save your database from older pieces or a lagged standby or even all the way from nothing if you’ve got everything logged from creation. It’s also useful for using busnet or upsnet to “test recovery” at an old fashioned physical DR site. And I really don’t want to ever just have one backup copy of anything I really care about.  


From: [] On Behalf Of Robert Freeman
Sent: Wednesday, December 02, 2009 3:34 PM To:; Goulet, Richard; Subject: Re: Question about RMAN Datafile + Archivelog Backups  

I've always thought that the archivelog backup should be the default condition with a switch to turn it off. Maybe it's a programitic constraint since the same command (backup database) is used for both ARCHIVELOG and NOARCHIVELOG mode backups.  

Robert G. Freeman
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From: "Allen, Brandon" <> To: "Goulet, Richard" <>; "" <>
Sent: Wed, December 2, 2009 12:23:12 PM
Subject: RE: Question about RMAN Datafile + Archivelog Backups

Yes, I like my backups to be recoverable :-) I was just pointing out the caveat that they’re not included if you just run “backup database”. It seems to me that it would be a good idea to make the backup command include archivelogs by default and only have an option to exclude them if desired for some reason – maybe in 12x.    

From: Goulet, Richard []  

True, don't you include the archive logs in the backup set??      

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Received on Wed Dec 02 2009 - 15:54:18 CST

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