Date: Wed, 21 Apr 1999 17:02:12 -0700 From: Darren Pilgrim <dpilgrim@uswest.net> To: Mark Ovens <marko@uk.radan.com> Cc: "Francis Percival C. Favoreal" <dune@cats.edu.ph>, Doug White <dwhite@resnet.uoregon.edu>, freebsd-questions@freebsd.org, freebsd-isp@freebsd.org Subject: Re: SCSI problem Message-ID: <371E6704.B6E8A560@uswest.net> References: <Pine.LNX.3.96.990421092534.18736A-100000@mayon.cats.edu.ph> <371D79EF.CA43A24B@uk.radan.com>
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Mark Ovens wrote: <brevity snip> > 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
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