Re: performance impact of archivelog

El lun, 17-11-2008 a las 14:44 -0800, Greg Rahn escribió:

> And I personally would never run a production database in noarchive
> log mode.  Never.
> 

Hi Greg:

I can understand your opinion about the archive log mode on production
databases, but in very special situations - for example a datawarehouse
with 20 TB of data aprox. renewing a lot of data each hour and 24X7, is
very difficult to maintain a backup in the Oracle standard mode ( hot
backup with rman with archive log mode on ). No window to backup all
data, the nologging inserts making a lot of unrecoverable points... we
are talking about tablespaces of 360GB, who can backup it at reasonable
speed? - I think that in very special cases - other example that comes
to my mind, a instance used as application cache or very volatile data -
the database could be in noarchivelog mode but after a carefully study,
of course. I'm with you, but I say 'For the 99,9% of production
databases I would never run it in noarchive log mode' :)

Best regards


D.

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