[plug] Multi-disk CD backups

[Bill Kenworthy]

Use perl to read a directory into a list, then parse the list, using zip
to add one file at a time to an archive up to 640M zip size.  Burn to
cdrw and move on to the next cd until list is done.

I use 5 cdrw's for a backup, but its quite SLOW, and inefficient at
adding the files, especially if there are a lot of small files.  But it
seems quite robust so far: reads the zips back in test mode and exits if
there is a failure!

I think perl has internal zip support, so there's probably ways to
improve the process.  Advantages are a single self contained zip archive
for each cd, a list file of whats stored where can be written out, so
finding and extracting one or more files is relatively easy.

Disadvantages: slow, manually changing cd's

BillK

On Fri, 2003-06-27 at 14:27, Ryan wrote:
> On Fri, 2003-06-27 at 14:15, Ryan dribbled on a fair bit:
> <snip>
> 
> he also typed mkisofs wrong :)
> 
> Okay, I should add that another option is to run a script down the tree
> and compress everything using ZIP so it is windows backup catalog
> friendly (some specific software we use) and would thus have thousands
> of smallish ZIP files (I can handle that bit).  
> 
> What would be needed is a sane way to break them all up in that form so
> they are in 700MB volume directories.
> 
> I saw something on freshmeat a while back that did this, but it was
> seriously buggy when i tried it and I had to give up.
> 
> Anyone know of anything else
> 
> Ryan
> 
> 
-- 
Bill Kenworthy <billk at iinet.net.au>