Subject: Re: dump - short guide
To: Bernd Sieker <email@example.com>
From: None <firstname.lastname@example.org>
Date: 02/23/2001 21:06:18
> > > with -B.
> > > And no, I don't think it's a good idea using the drive's compression
> > > mechanism for _backups_...
> > why?!
> Partly because the program cannot tell in advance how much is going to
> fit onto one tape and to prompt you to change tapes _before_ the end
> of the tape is reached. "dump" is not suited for dealing with multiple
> tapes with different capacities.
from man dump:
dduummpp examines files on a filesystem and determines which files need to be
backed up. These files are copied to the given disk, tape or other stor-
age medium for safe keeping (see the --ff option below for doing remote
backups). A dump that is larger than the output medium is broken into
multiple volumes. On most media the size is determined by writing until
an end-of-media indication is returned. On media that cannot reliably
return an end-of-media indication (such as some cartridge tape drives)
each volume is of a fixed size; the actual size is determined by the tape
so how to turn this writing until eom on?!