[Gllug] Back-out plans on Debian/Redhat?

[Alain Williams]

On Mon, Mar 09, 2009 at 12:43:04AM +0000, Tethys wrote:
> --------
> 
> Richard Jones writes:
> 
> >> You can do it live yourself with such fancy tools as tar.
> >
> >Well, not if you want a consistent snapshot
> 
> Just curious... why not? If you use LVM snapshotting (or filesystem
> level snapshotting if you're using an fs that supports that), then
> what are you losing?

Also depends on what you are using the LVM snapshotting to protect against.
This will allow you to back out from immediate problems after an update,
it doesn't always work like that - sometimes you only realise that the
update screwed things a little while later, by then the users have been
doing work and if you return the programs to the previous state you will
also wind back user data.

The users may not appreciate that.

-- 
Alain Williams
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