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Date:      Tue, 18 Jun 1996 15:26:15 +0100
From:      "Gary Palmer" <gpalmer@FreeBSD.ORG>
To:        gwk@cray.com
Cc:        freebsd-bugs@freefall.freebsd.org
Subject:   Re: bin/1320: dump limits blocksize to 32K 
Message-ID:  <29384.835107975@palmer.demon.co.uk>
In-Reply-To: Your message of "Mon, 17 Jun 1996 15:23:30 %2B0200." <199606171323.PAA18629@racer.dkrz.de> 

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"Georg-W. Koltermann" wrote in message ID
<199606171323.PAA18629@racer.dkrz.de>:
> I would prefer to get a warning from dump(8), not an error exit.
> There may be other cases to consider, in addition to dumping to a
> remote system with rdump(8).

> E. g. how about dumping to a locally attached device with the
> intention of restoring the tape on another system?  The other system
> may very well be capable of handling blocksizes > 32.

You can't do it. There is a limitation to do with the way the kernel
handles the pages that limits the blocksize you can use for
dump/restore... The warning is there for a VERY good reason. From what
I remember about the discussions in this area with John Dyson and
David Greenman, it's not an easily overcome problem either.

Gary
--
Gary Palmer                                          FreeBSD Core Team Member
FreeBSD: Turning PC's into workstations. See http://www.FreeBSD.ORG/ for info



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