Re: Lan server disaster recovery
From: Michael Meissner (mrmnews_at_the-meissners.org)
Date: 07/19/04
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Date: 18 Jul 2004 21:20:45 -0400
"Rasta99" <rasta99@libero.it> writes:
> I would like to build up a lan server disaster risk free, i'm considering
> the idea to buy 2 identic pc and setup one with 2 hd in raid 1 so when an hd
> or any other hardware component blow up i can move the working hd to the
> second pc and have the server up in a few minutes. This also could leave me
> from the problem of do daily backups.
> I only have 2 dubts:
>
> 1 - When i put the full hd (with linux configurated and all the progs and
> files of the server) as master in the second pc with a blank hd as slave,
> all the contens will be auto copied to the 2nd hd recovering the raid
> situation on the 1st pc or not?
>
> 2 - Is this a good solution or are there others less expensive/complicated?
I would recomend two computers, configured so that you have the data on a
separate disk/partition than the OS (in fact if I have the space, I always make
2 root partitions on separate disks, which allows you to experiment with
alternate distributions/releases while keeping your primary system so you can
go back to it). No user data is to be stored on the OS partitions, so that you
can blow it away, and install a new OS if needed/desired. If you want maximum
reliability, put the user disks in an appropriate RAID configuration. The
second machine is similarly configured, but you can save some $$$ by not making
the disks RAID. You use rsync or a similar tool to backup the data to your
hot-server and then do backups from that system. I use this system for my
photo files, and find it useful if I deleted a file on the main server, to
recover it via rsync. Since I control when the copy to the hot backup is done,
I do it when things are in a consistant state.
-- Michael Meissner email: mrmnews@the-meissners.org http://www.the-meissners.org
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