From owner-freebsd-scsi Fri May 24 01:29:45 1996 Return-Path: owner-freebsd-scsi Received: (from root@localhost) by freefall.freebsd.org (8.7.3/8.7.3) id BAA09916 for freebsd-scsi-outgoing; Fri, 24 May 1996 01:29:45 -0700 (PDT) Received: from zed.ludd.luth.se (root@zed.ludd.luth.se [130.240.16.33]) by freefall.freebsd.org (8.7.3/8.7.3) with ESMTP id BAA09903 for ; Fri, 24 May 1996 01:29:38 -0700 (PDT) Received: from zero.ludd.luth.se ([127.0.0.4]) by zed.ludd.luth.se (8.7.5/8.7.2) with ESMTP id KAA24700; Fri, 24 May 1996 10:29:33 +0200 From: Joakim Henriksson Received: (murduth@localhost) by zero.ludd.luth.se (8.6.12/8.6.11) id KAA05378; Fri, 24 May 1996 10:29:32 +0200 Message-Id: <199605240829.KAA05378@zero.ludd.luth.se> Subject: Re: How to send "start unit" to disk during boot? To: af@biomath.jussieu.fr Date: Fri, 24 May 1996 10:29:31 +0200 (EET DST) Cc: freebsd-scsi@freebsd.org In-Reply-To: <199605232112.WAA03275@garfield.biomath.jussieu.fr> from "af@biomath.jussieu.fr" at May 23, 96 10:12:32 pm Content-Type: text Sender: owner-freebsd-scsi@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > I have been given a DEC RZ24 (200Mb) SCSI disk which I have > successfully connected to my PC (133Mhz Pentium, Intel Endeavour m/b, > AHA2940 controller, IDE boot disk). This disk, like some other DEC > disks, does *not* spin up when powered up. Other DEC disks have > jumpers to change this, the RZ24 doesn't seem to have them. Some of the Digital (all?) rz disks have the spinup parameter in one of the vendor specific mode pages of the scsi disk. Try something like "scsi -f /dev/rsd?c -m 37 -e -P 3" and change the spinup value to 0 the page referenced in the m parameter might be diferent. To find out which page it is you should do "scsi -f /dev/rsd?c -m ??" where ?? is from 0x01 to 0x3f but maybe in decimal, someone a bit more knowledgable about the scsi command help me out! I have only done this on a VAX station using the rzdisk utility which works just like scsi but on rz disks :) regards/ Joakim