now a dump question (was Re: tar question...)

[Brad De Vries]

--- Tim Wunder <tim at thewunders.org> wrote:
> On Monday 05 May 2003 9:55 am, someone claiming to
> be Net Llama! wrote:
> > On Mon, 5 May 2003, Tim Wunder wrote:
> > > I want to tar -zcvf all the data in /home,
> except what's contained in
> > > /home/<somedir>. Any ideas how to do that?
> >
> > tar has an --exclude switch.  Check the man page.
> 
> Hmmm... missed that. Thanks.
> 
> I'm also trying to understand dump a little better.
> I have this in a backup 
> script:
> /sbin/dump 0uBf 10000000 /dev/st0 /home
> Which is supposed to dump the /home partition
> (/dev/sda5) to tape. Well, my 
> disk usage on /home is at or near the uncompressed
> capacity of my tape drive, 
> so I started reading thru the dump man page, and it
> looks like you can 
> compress the dump. Based on what I read, I thought I
> just needed to add a "z" 
> in there, like so:
> /sbin/dump 0uzBf 10000000 /dev/st0 /home
> But this doesn't seem to work for me. Is there
> anything obviously wrong there?
> I'm gonna be using tar for the backup for the time
> being, but it seems to be 
> alot easier to restore individual files using
> dump/restore. So I'd like to 
> get a functional compressed dump.
> 
> BTW, this is on a RHL 7.0 server.
> 
> Thanks, 
> Tim

You could try:
/sbin/dump -0u -z 2 -B 10000000 -f /dev/st0 /home

The only real change was adding the "compression
level" parameter to the -z option.

This seems to work on RHL 7.3.

Brad.


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