I'm trying to get around using multipule tapes.  Assume that there is no
getting around this with dump?

jam
----- Original Message -----
From: "Simon Burge" <simonb@wasabisystems.com>
To: "John Maier" <jmaier@midamerica.net>
Cc: <netbsd-users@netbsd.org>
Sent: Tuesday, January 02, 2001 2:26 PM
Subject: Re: Tape Backups -- tar vs. dump


> "John Maier" wrote:
>
> > Yeouch!
> > dump didn't like the multipule mount points:
> > > dump -0u -L `date '+%m/%d/%G'` -B 20000000000 / /usr /var
> > Excess arguments to dump: /usr /var
>
> Use separate dumps for each filesystem.  You might also get better speed
> by using a larger blocking factor.  Something like:
>
> dump 0ubBf 64 20000000000 /dev/nrst0 /
> dump 0ubBf 64 20000000000 /dev/nrst0 /usr
> dump 0ubBf 64 20000000000 /dev/nrst0 /var
>
> That says use 64k per block and /dev/nrst0 is the *n*on-rewinding tape
> device.  Also, the date of the dump is stored in the header so you
> don't need to explicitly add it yourself.
>
> Oh, and dump doesn't do compression itself.  Depending on the tape
> drive, it might do compression for you.  Otherwise, you could have a
> look at amanda (in pkgsrc under sysutils/amanda).  Amanda has some other
> neat features that might make it useful to look at anyways...
>
> Simon.
> --
> Simon Burge                            <simonb@wasabisystems.com>
> NetBSD CDs, Support and Service:    http://www.wasabisystems.com/
>