From owner-freebsd-scsi Sun Mar 29 21:21:06 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id VAA10550 for freebsd-scsi-outgoing; Sun, 29 Mar 1998 21:21:06 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from sendero.simon-shapiro.org (sendero-fddi.Simon-Shapiro.ORG [206.190.148.2]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id VAA10541 for ; Sun, 29 Mar 1998 21:21:03 -0800 (PST) (envelope-from shimon@simon-shapiro.org) Received: (qmail 21734 invoked from network); 29 Mar 1998 22:23:31 -0000 Received: from localhost.simon-shapiro.org (HELO sendero-fxp0.simon-shapiro.org) (@127.0.0.1) by localhost.simon-shapiro.org with SMTP; 29 Mar 1998 22:23:31 -0000 Message-ID: X-Mailer: XFMail 1.3-alpha-032398 [p0] on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <199803292124.OAA02989@panzer.plutotech.com> Date: Sun, 29 Mar 1998 14:23:31 -0800 (PST) Reply-To: shimon@simon-shapiro.org Organization: The Simon Shapiro Foundation From: Simon Shapiro To: "Kenneth D. Merry" Subject: Re: SDT-7000 and other DDS-2 tapes Cc: semen@iclub.nsu.ru, FreeBSD-scsi@FreeBSD.ORG Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On 29-Mar-98 Kenneth D. Merry wrote: > Simon Shapiro wrote... >> >> On 25-Mar-98 Kenneth D. Merry wrote: >> > Simon Shapiro wrote... >> >> >> >> On 25-Mar-98 Ustimenko Semen wrote: >> >> > >> >> > Have somebody succesfuly used SDT-7000 under FreeBSD? >> >> >> >> Yes. Two of them in shared mode on a DPT controller. >> > >> > What do you mean by "in shared mode"? >> >> I use most of my SCSI devices on a shared bus between two FreeBSD boxes. >> Part of the (still developing) High Availability Server I am working on. > > Interesting indeed. You might be interested to know that the CAM > tape driver does a reserve unit on open, so any other initiators on the bus > won't be able to muck with the drive when one initiator has it open. (of > course, it cancels the reservation at final close) Great, but the DPT controller does that in the firmware already. I cannot wait to move the driver to CAM, but no time so far :-( If you have (something I asked Justin for :-) a list of API routines the CAM produces ( a brief ``what it does'' will be great!), and entry points expected of a driver, you will xut my development time by a week or two. ---------- Sincerely Yours, Simon Shapiro Shimon@Simon-Shapiro.ORG Voice: 503.799.2313 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message