From owner-freebsd-scsi Thu May 13 11:17:16 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from picnic.mat.net (picnic.mat.net [206.246.122.133]) by hub.freebsd.org (Postfix) with ESMTP id AF567150FE for ; Thu, 13 May 1999 11:17:12 -0700 (PDT) (envelope-from chuckr@picnic.mat.net) Received: from localhost (chuckr@localhost) by picnic.mat.net (8.9.3/8.8.5) with ESMTP id OAA01558; Thu, 13 May 1999 14:14:35 -0400 (EDT) Date: Thu, 13 May 1999 14:14:35 -0400 (EDT) From: Chuck Robey To: Matthew Jacob Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: IBM scsi drives In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Thu, 13 May 1999, Matthew Jacob wrote: > > > I've had some reasonable good experiences in some contexts with the IBM > drives- but they have a wierd property of not working if your host adapter > negotiates sync speeds before negotiating wide. Make sure these drives > work for you before you pay! Tried that. Price I quoted is from TJT Intl, and they have a 30 day guarantee, except they charge a 15% restocking fee, so I was hunting more assurance. I want to stick it on a bus with 3 existing IBM 34330W drives, and the 34560 will be the only LVD drive. Those old Quantum differential drives burned a warning message into my soul. That was a 50 pin bus, this is 68 pin, but I'm still wary. The TJT guy says he *thinks* they work ok with ohter drives, excepting the 34560 will not provide a termination, so one of the 34330's will have to do that (no problem there). I just want to see if someone else has some direct experience with the DDRS34560W-LVD. Sure would make me feel better. > > > On Thu, 13 May 1999, Chuck Robey wrote: > > > Anyone got experience with an IBM scsi drive, DDRS34560W-LVD? Their web > > page says the LVD stands for low voltage differential, and I've got bad > > memories of dealing with Quantum differentials ... the IBM data says > > it's fully compatible, on my existing bus, with single-ended scsi (at a > > lower transfer rate, only 40MB), but I'm wondering. > > > > At $175 for 4.5G, it seems like it would be a good deal if I knew it to > > work .... does anyone have any experience with it? > > > > BTW, this is for a hobby system, not a professional system, so anyone > > suggesting I spend triple the price for extra reliability is going to be > > politely ignored. > > > > ----------------------------+----------------------------------------------- > > Chuck Robey | Interests include any kind of voice or data > > chuckr@picnic.mat.net | communications topic, C programming, and Unix. > > 213 Lakeside Drive Apt T-1 | > > Greenbelt, MD 20770 | I run picnic (FreeBSD-current) > > (301) 220-2114 | and jaunt (Solaris7). > > ----------------------------+----------------------------------------------- > > > > > > > > > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-scsi" in the body of the message > > > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-scsi" in the body of the message > ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@picnic.mat.net | communications topic, C programming, and Unix. 213 Lakeside Drive Apt T-1 | Greenbelt, MD 20770 | I run picnic (FreeBSD-current) (301) 220-2114 | and jaunt (Solaris7). ----------------------------+----------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message