From owner-freebsd-questions Thu May 14 04:43:20 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id EAA10906 for freebsd-questions-outgoing; Thu, 14 May 1998 04:43:20 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from caladan.tdx.co.uk (caladan.tdx.co.uk [195.188.177.4]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id EAA10893 for ; Thu, 14 May 1998 04:43:15 -0700 (PDT) (envelope-from kpielorz@tdx.co.uk) Received: from tdx.co.uk (lorca-tx.tdx.co.uk [195.188.177.242]) by caladan.tdx.co.uk (8.8.8/8.8.8) with ESMTP id MAA26890 for ; Thu, 14 May 1998 12:43:16 +0100 (BST) (envelope-from kpielorz@tdx.co.uk) Message-ID: <355AD8D4.B09091C2@tdx.co.uk> Date: Thu, 14 May 1998 12:43:16 +0100 From: Karl Pielorz Organization: TDX X-Mailer: Mozilla 4.04 [en] (WinNT; I) MIME-Version: 1.0 To: questions@FreeBSD.ORG Subject: SCSI - wiring down devices... Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I have a machine with a 2940UW and a 2940 in it, and I would like to wire my SCSI drives down so that: sd0 = Controller #0 (which boots the system), ID #0 sd1 = Controller #0 ID #1 ... sd7 = Controller #1 ID #0 sd8 = Controller #1 ID #1 ... The idea is that the system boot's off the 2940UW, and as I'm going to be adding and removing a large number of drives over both the controllers - I don't want sd0 to 'suddenly' get assigned somewhere else - and I'd like the drives sdX number to be dependant on their ID (to avoid the sdX table 'collapsing' when I remove drives from the middle)... To this end I've got: controller scbus0 at ahc0 controller scbus1 at ahc1 disk sd0 at scbus0 target 0 ... disk sd7 at scbus1 target 0 disk sd8 at scbus1 target 1 ... In my kernel config... When I try to config the kernel I get: " caladan# config SMP-CALADAN config: line 78: ahc 1 not defined Warning: sd0 is configured at scbus1 which is not fixed at a single adapter. " I fixed this by adding another line to the config that says: controller ahc1 My questions are: a) Is this going to work? - It would 'appear' to work thus far, but I've not added the drives yet... b) Can anyone think of anything bad that's going to happen if I do this? Regards, Karl Pielorz To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message