[Gllug] local backup solution

[Martin]

On 01/13/2010 12:52 PM, Richard Jones wrote:
> On Tue, Jan 12, 2010 at 11:41:28PM +0000, Martin wrote:
>    
>> Hi all,
>> I'm looking for a local backup solution. Every week there will be some
>> new or modified files. I think it would be reasonable to apply
>> incremental backup every Friday and a full backup at the end of the
>> month. Does it sound right to you? I don't think the amount of data will
>> be very high. I'm guessing around 50MB per week.
>> At the moment it'll only be a local backup on a CD. We don't have any
>> server yet. We're thinking of automatically creating tar.gz/bz2 packages
>> at the end of the week and burning them on CDs (also automatically -
>> cdrecord?). Obviously, a CD would have to be put into a drive manually.
>>      
> I use rsync to copy everything over the network to another machine
> that has several cheap USB disks arranged in a RAID array.  The first
> rsync takes a long time because it's copying everything.  Subsequent
> invocations are relatively quick because they just copy incremental
> changes.
>
> Note several advantages and disadvantages to this scheme:
>
> (1) USB hard disks are very cheap,
>
> (2) ... but there's no compression,
>
> (3) ... and USB hard disks are pretty unreliable.
>
> (4) No ability to go back in time as you would have with a real
> incremental backup.  So if you delete something and realize a month
> later, then it's gone forever (if you use the rsync --delete option
> anyway, or you overwrote the file),
>
> (5) ... but it's very easy to restore files.  Just ssh to the other
> machine and copy back any files you need.
>
> Rich.
>
>    
You're talking about network backup. Unfortunately we don't have a LAN 
network set up yet due to some silly network arrangements on the 
business centre part (the building renting offices). We've got two 
network sockets in the wall. I don't even know what kind of network it 
is. I guess it's not possible to create LAN with a network switch, is 
it? What would be the default gateway, etc? There are only two computers 
at the moment. It's not imperative now, but next month I'll have to get 
it sorted and organise LAN for the computers and a network printer.

thanks
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