Re: [MLUG] backup techniques

[yoda <EMAIL:PROTECTED>]

I've compressed backup tars with both bzip2 and gzip, and not had any
trouble with them. I don't have a tape drive, though, I was sending them
to our apartment's file server to write to CD. True, compressing
compressed files won't help compression, but on a tar of a whole linux
system, many, many files are simply text, and will compress well.

Oh, and you won't lose any data compressing with gzip or bzip2, ever
(unless they crash or something). They're lossless compression
schemes.

On Sun, 31 Mar 2002, Jason McIntosh wrote:

> Most of the time, compressing an already compressed file will make it bigger.
>    You don't want to do that.  Particularly if you're compressing to a tape 
> backup system.  Most of those use hardware compression (well, most of the 
> good ones) and trying to compress on the client side is a waste of processor 
> and time.
> Just my opinions, as I don't do too much backup systems.  If someone else 
> knows more, please say so!
> Cheers!
> Jason
> 
> On Monday, April 1, 2002, at 01:09  PM, Todd, Matthew Caleb (UMC-Student) 
> wrote:
> 
> > in backing up a system, i've been using just a general tar.  but i was
> > wondering if it was safe to compress them.  i know i have a couple of
> > compressed files already and if i compress them along with the rest of
> > the
> > files i'm chancing losing some data.
> >
> > i'm guessing there's some tools for system backups but just the same, is
> > compression good for large archive files that may already contain
> > compressed
> > files.
> >
> > any suggestions?
> >
> > -matt
> > --
> > To unsubscribe, go to http://mlug.missouri.edu/members/edit.php
> >
> > Archives are available at http://mlug.missouri.edu/list-archives/
> 
> --
> To unsubscribe, go to http://mlug.missouri.edu/members/edit.php
> 
> Archives are available at http://mlug.missouri.edu/list-archives/
> 

--
To unsubscribe, go to http://mlug.missouri.edu/members/edit.php

Archives are available at http://mlug.missouri.edu/list-archives/