Re: opinions please: auto-backup to CDRW
Hi Chris,
The idea is sane to start with, however i fail to see the point in using the
loopback part. you can use mkisofs not only to create empty filesystems, but
also to fill them up with all the files/folders in a (pre-build) tree.
(saves you some trouble, suggest 'man mkisofs')
As a second point, if all fits on one cdr the only purpose of doing tar+gzip
is to make several backups on once cdr. (perhaps this part can also be
skipped).
Last point: lifetime of cd-rw's IS MOST DEFINITLY NOT ENDLESS. i suggest you
solve this in your backup plan, by using multiple cd-rw's and backuping
every day, adding one new cd-rw every week and archiving the oldest cd-rw at
the same time.
Hope this helps,
Nico
----- Original Message -----
From: <Chris.Smith@raytheon.co.uk>
To: <debian-user@lists.debian.org>
Sent: Tuesday, June 19, 2001 2:26 PM
Subject: opinions please: auto-backup to CDRW
> Hi,
>
> I've been thinking about something over the last few
> days and was wondering if it classifies as "sane" -
> opinions please!
>
> I have about 500Mb of variable data (theres only 4
> console only users and we arent mp3 freaks!) and a
> CDRW. Would it be worth setting up a script+cron
> job to do the following nightly:-
>
> 1/ tar+gzip /home AND /etc AND /var/mail AND
> /root/scripts
> 1.a/ make sure it'll fit on a CD
> 2/ make an iso file to fit files w/ mkisofs
> 3/ mount image using loopback
> 4/ put archives from (1) in image
> 5/ erase CDRW w/ cdrecord
> 6/ write image to cdrw w/ cdrecord
> 7/ clean up.
>
> Do this nightly on a "7 disk cycle manually via changing
> the disk before I go to bed and let it do it at 2am" (TM)
> methodology ;) If I left the disk in and/or forgot, it'd
> still backup the disk. I'd do a manual archive CD-R copy
> once a week too (this is what I'm doing at the moment).
>
> I (unfortunately) dont know the life cycle of average CDRW
> media (Sony to be precise), so I dont know if this is
> practical. It's a bog standard 2.2r3 box btw running kernel
> 2.2.something (I forget which!)
>
> Any suggestions/comments/flames etc?
>
> Cheers,
>
> - Chris.
>
>
> --
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