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Article #7

Re: ANOUNCEMENT: zsplit, unzsplit: free linux tools to make a full drive image backup!

#7
From: jurij
Date: Wed, 16 Feb 2005 20:31
50 lines
2935 bytes
Thomas Wana <thomas_hatesspam@wana.at> wrote in message news:<4212F814.1010204@wana.at>...
> Impressive. But wait! Do I have that already installed on my
> system?
> 
> jurij@device-image.de wrote:
> > Please visit the homepage of DeviceImage-Project:
> > http://www.device-image.de
> > 
> > Disk images provide a powerful backup-restore solution and are exact
> > copies of your hard drive which are created by using low level byte by
> > byte copy operation. So even if your drive goes bad, you will still
> > have an entire copy of your system that you can restore.
> 
> man dd
> 
> > 
> > zsplit and unsplit are Linux utilities. 
> > zsplit is a command line imager, which allows you to create an exact
> > disk image. Finally it compresses the output image file and splits it
> > into chunks of defined size to fit exactly the size of storage media
> > (CD, DVD or HDD).
> 
> man dd
> man bzip2
> man gzip
> man split
> 

Of course you have plenty possibilities using linux/UNIX to reach the
same or nearly the same result as with zsplit/unzsplit, but:
1. I have problems to split files bigger then 2 Gigabyte with split

2. also gzip and bzip2 were not helpful with files bigger then 4
Gigabyte.

- with zsplit/unzsplit on the same machine, same kernel I can
effectively treat files/devices as big as 200 Gigabyte and for sure
even bigger.

3. with different tools combined in scripts you cannot have a good
control about progress in zipping and splitting files in chunks.

4. to use one tool which combines features of different tools is
easier to use in scripts the combination of tools.

So as you can see new is here not an idea of imaging, but the
combination of features in one tool.

Regards,
Jurij
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From: jurij@device-image.de (jurij@device-image.de)
Newsgroups: alt.os.linux.suse,alt.os.linux.turbolinux,alt.windows-xp,at.linux,at.tuwien.lva.se-linux
Subject: Re: ANOUNCEMENT: zsplit, unzsplit: free linux tools to make a full drive image backup!
Date: 16 Feb 2005 12:31:21 -0800
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