From owner-freebsd-hackers Fri May 8 15:00:40 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA23516 for freebsd-hackers-outgoing; Fri, 8 May 1998 15:00:40 -0700 (PDT) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from misery.sdf.com (misery.sdf.com [204.244.213.32]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id OAA23280 for ; Fri, 8 May 1998 14:59:48 -0700 (PDT) (envelope-from tom@sdf.com) Received: from tom by misery.sdf.com with smtp (Exim 1.82 #3) id 0yXulS-0001Uz-00; Fri, 8 May 1998 14:33:10 -0700 Date: Fri, 8 May 1998 14:33:09 -0700 (PDT) From: Tom To: Mark Tinguely cc: wilko@yedi.iaf.nl, freebsd-hackers@FreeBSD.ORG Subject: Re: dump/restore problem (was: Network problem with 2.2.6-RELEASE) In-Reply-To: <199805081736.MAA13752@plains.NoDak.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Fri, 8 May 1998, Mark Tinguely wrote: > > DLTs need blocksizes >= 64 Kb to be kept happy streaming. I used a DLT2000 > > for years on my FreeBSD box, I now have a DLT4000. I can't keep 'm streaming > > from a 4G Barracuda with the current 64kB physio() limit. Keep the tape and > > the disks on seperate SCSI channels (I have 2x NCR810). > > do you have any experience using the DLT drive backup filesystem over a > moderately busy local area network? The low end DLT drives do about 1000K to 1500K/s. So, a backup over a 10mbs network isn't going to stream. You could use fast ethernet, or spool data to disk first (I do the later). > --mark. Tom To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message