Re: RMAN or Hot Backup

From: Mladen Gogala <>
Date: Fri, 10 Apr 2009 07:24:40 +0000 (UTC)
Message-ID: <grms7o$5a0$>

Na Thu, 09 Apr 2009 19:07:06 -0500, Bob Jones napisao:

> I am not sure what you meant by avoiding redo problems and suspending
> the system. I see neither being a problem with non-RMAN backups.

He probably means something like "ALTER SYSTEM SUSPEND", frequently employed with snapshot technology or with BCV splitting. I am by no means a mind reader, but those are the first things that come to mind when someone starts talking about suspending the system.

> - In this thread, and fairly commonly, the distinction is made by -
> calling the OS inconsistent copies hot backups and the RMAN -
> inconsistent copies RMAN backups.
> Actually this is the first time I have ever heard that.
> - What terminology do you use?
> Anything but "hot backup". Not all OS backups are hot. They can be cold
> too.

Backup is a dish best served hot, as opposed to revenge. Cold backup will force you to shut down the database, which is called "downtime" and is generally not well liked by the end users, those who usually pay for the database as well as for the expensive backup software and hardware. For some reason, those jerks want their database to be available as much as possible, which makes a cold backup into an unpleasant affair.

Received on Fri Apr 10 2009 - 02:24:40 CDT

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