Ron Johnson wrote:
On 06/11/07 00:28, Mitja Podreka wrote:
hello
I have a web server with about 270 GB of space on the three disks in
RAID5. It's only function is to host a Moodle e-learning system.
I would like to make an external backup of user/course files. Not
just for an extra level of redundancy, but also to protect the users
from their own errors.
I've read a lot about backup software and already decided about which
one to use. I would like you to ask about advice about hardware.
Is external USB disc suitable for this? Should I put an extra disc to
my workstation? Should I make an "dedicated" backup server out of an
old computer and new disc(s)? Should I try to buy some "ready-made"
solution?
Since Moodle stores it's data in MySQL or PostgreSQL, you'll have to
backup the whole database. I wouldn't recommend using rsync.
How does *Moodle* suggest that you back up your data? If it has a
method for extracting/reloading specific courseware, that would make
it easier to recover a single teacher's mistakes.
Moodle can make it's own backups of individual courses and this backups
include XML dumps of course data in database, so I will backup this
backups. Some of course backup can reach up to 2 - 4 GB and they will
eat up a lot of space in backups, so I will have to delete them on some
regular basis.
How often do you think you need to backup the data? Do you need/want
to do off-site disaster protection or just protect against user stupidity?
I want/must have both. I have to back up data daily.
Going through a lot of hardship I could probably convince the
faculty, to invest into some storage solution, but since the server
is one of the only two Linuxes (Debians) on the faculty (the second
one being my workstation) I would like to offer them an
interesting/cheap(er) "OpenSource" solution.
How is hardware "open source"?
That's why I putted it in quotes. What I meant was to use
older/available hardware in combination with Open Source to do things
for which the faculty should spent buckets of bucks if they would follow
their favourite windows way.
thanks,
Mitja
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