Re: suggestion: do not keep files in tar archives.

[On 16 Dec, @14:43, Jesper wrote in "Re: [hdup-user] suggestion: do ..."]
> I want to keep the possibility of having daily incremental back ups, something I don't
> get with just mirroring. Still I also want to have fast access (secs rather
> than several hours) to the files of the backup.

from quickly looking at afio I see that there are some differences.

Usage:  [filename generator] | afio -o [options] archive  : write archive

So i have to do something fishy with 'filelist', but that can be abstracted
in the hdupafiolib.c so that is not a big problem.

Afio can, just as tar, gzip the archive on the fly. Now, with tar it turned out
that this has bugs, or didn't work over the network. Whatever the reason I have
since done this myself in 'hdup'. By doing a 'tar xvf - | gzip', this can also
be done with afio: cat filelist | afio -o - | gzip -c > archive.afio.gz

The restoring will be done in the same way, so first unzip, then extract.

My question is this: if you gzip afio archives in this way, will there still
be a speed benefit compared to tar? You will need the entire archive before
being able to unzip it....

For encryption the story is the same. 

grtz Miek