From owner-freebsd-questions Wed Apr 21 17: 5:12 1999 Delivered-To: freebsd-questions@freebsd.org Received: from ptldpop1.ptld.uswest.net (ptldpop1.ptld.uswest.net [198.36.160.1]) by hub.freebsd.org (Postfix) with SMTP id 1186A158D5 for ; Wed, 21 Apr 1999 17:05:02 -0700 (PDT) (envelope-from dpilgrim@uswest.net) Received: (qmail 11383 invoked by alias); 22 Apr 1999 00:02:32 -0000 Delivered-To: fixup-freebsd-questions@freebsd.org@fixme Received: (qmail 11348 invoked by uid 0); 22 Apr 1999 00:02:32 -0000 Received: from fdsl89.ptld.uswest.net (HELO uswest.net) (216.161.80.89) by ptldpop1.ptld.uswest.net with SMTP; 22 Apr 1999 00:02:32 -0000 Message-ID: <371E6704.B6E8A560@uswest.net> Date: Wed, 21 Apr 1999 17:02:12 -0700 From: Darren Pilgrim Organization: Neatly stacked heaps of digital chaos X-Mailer: Mozilla 4.51 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Mark Ovens Cc: "Francis Percival C. Favoreal" , Doug White , freebsd-questions@freebsd.org, freebsd-isp@freebsd.org Subject: Re: SCSI problem References: <371D79EF.CA43A24B@uk.radan.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Mark Ovens wrote: > Just a thought but this couldn't be caused by (SCSI) BIOS settings > could it? I only ask because I've just added a second SCSI HD to my > system and it exhibits similar behaviour, although it never fails to > start. > > The original disk is an IBM Ultrastar 2ES U/W and that spins up as > soon as the power is switched on but the new disk, IBM Ultrastar 9ES > U/W, doesn't spin up until the SCSI controller probes it (I thought > I'd forgotten to connect the power lead the first time I powered up > after installing it). > > The SCSI card is a Diamond Fireport (NCR/Symbios 53c875 chip). It > seems strange that one disk spins up immediately and the other waits > until it's probed, but since it always spins up and works without > problems I've never bothered investigating further. Some of the SCSI HBAs I have stage the spin-ups to avoid overloading the power supply. Perhaps this might be the cause? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message