Re: RMAN or Hot Backup
Date: Thu, 26 Mar 2009 23:58:19 +0000 (UTC)
On Thu, 26 Mar 2009 11:07:14 -0700, jgar the jorrible wrote:
> The only reason to use hot backups is if you have an expensive hardware
> solution such as triple mirroring, that can split off a mirror more
> rapidly than other ways of moving data around.
Not quite. There are open source backup products that do not work with
RMAN and do work with hot backup mode. Examples of such software are
Bacula and Amanda, both excellent pieces of software which can control
robots, catalog backups and do most of the stuff that very expensive
commercial backup pieces can do. If your company wants to cut costs and
use open source, Bacula can be a real money saver. I know that RMAN is
the mainstream, but hot backup can be cheaper. Much cheaper. On the other
hand, backup system is the last system that I would consider for saving
Also, NetApp has snapshots which are not supported by RMAN. They also have a backup, based on hot backup mode, which can do quick snapshot backups for you. Hot backups are very useful.