From owner-freebsd-hardware Thu Feb 26 17:59:24 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA23356 for freebsd-hardware-outgoing; Thu, 26 Feb 1998 17:59:24 -0800 (PST) (envelope-from owner-freebsd-hardware@FreeBSD.ORG) Received: from allegro.lemis.com (allegro.lemis.com [192.109.197.134]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA23153; Thu, 26 Feb 1998 17:58:54 -0800 (PST) (envelope-from grog@lemis.com) Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by allegro.lemis.com (8.8.7/8.8.5) with ESMTP id MAA01575; Fri, 27 Feb 1998 12:28:50 +1030 (CST) Received: (from grog@localhost) by freebie.lemis.com (8.8.8/8.8.7) id MAA07161; Fri, 27 Feb 1998 12:28:49 +1030 (CST) (envelope-from grog) Message-ID: <19980227122849.39793@freebie.lemis.com> Date: Fri, 27 Feb 1998 12:28:49 +1030 From: Greg Lehey To: Lars Koeller Cc: Lars Koeller , freebsd-scsi@FreeBSD.ORG Subject: Re: Conclusion: Seagate Python firmware and hanging SCBs on 2940! References: <19980224180111.16031@freebie.lemis.com> <199802240806.AA214087617@pollux.hrz.uni-bielefeld.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.89i In-Reply-To: <199802240806.AA214087617@pollux.hrz.uni-bielefeld.de>; from Lars Koeller on Tue, Feb 24, 1998 at 09:06:57AM +0100 WWW-Home-Page: http://www.lemis.com/~grog Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Tue, 24 February 1998 at 9:06:57 +0100, Lars Koeller wrote: > ---------- > > Oh! > > In reply to Greg Lehey who wrote: > >> On Tue, 24 February 1998 at 8:28:40 +0100, Lars Koeller wrote: >>> -------- >>> >>> Hi! >>> >>> Just for your information! Don't use any combination of Seagate Python DAT >>> drives, Adaptec 2940 SCSI controller and FreeBSD or Linux! >> >> This is somewhat overstating the case. I've been using exactly that >> combination for 15 months, and I've been very satisfied. > > Hmmmm! Are you enable tagged comman queuing? Not explicitly. I haven't checked. I'm running pretty much the latest -CURRENT. > What software? tar > Tar seems to be o.k. Yup. > dump most time can recover (better survive) 2 hanging SCB! But > software which does continuous write lage blocks (30MB) and have a > really high optimizing buffer queuing algorithm seems to mak > problems, please test > > ftp://ftp.zn.ruhr-uni-bochum.de/pub/linux/afbackup-2.11.3.tar.gz Now that's an interesting viewpoint. I don't intend to change my backup patterns, especially since it would promise to make things worse, but it's a valid comment. On the other hand, it doesn't mean you can say "Don't use any combination of Seagate Python DAT drives, Adaptec 2940 SCSI controller and FreeBSD or Linux!" Greg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message