From owner-freebsd-hardware Mon Jan 3 23:43:32 2000 Delivered-To: freebsd-hardware@freebsd.org Received: from phoenix.welearn.com.au (phoenix.welearn.com.au [139.130.44.81]) by hub.freebsd.org (Postfix) with ESMTP id E4EDB15025 for ; Mon, 3 Jan 2000 23:43:24 -0800 (PST) (envelope-from jon@phoenix.welearn.com.au) Received: (from jon@localhost) by phoenix.welearn.com.au (8.9.3/8.9.3) id SAA84617; Tue, 4 Jan 2000 18:43:02 +1100 (EST) (envelope-from jon) Date: Tue, 4 Jan 2000 18:42:59 +1100 From: Jonathan Michaels To: Mitch Collinsworth Cc: Andreas Klemm , hardware@FreeBSD.ORG Subject: Re: wanna buy an EIDE harddisk ... 5400 or 7200 for home use (noise) Message-ID: <20000104184258.A84552@phoenix.welearn.com.au> Reply-To: jon@welearn.com.au Mail-Followup-To: Mitch Collinsworth , Andreas Klemm , hardware@FreeBSD.ORG References: <200001032308.SAA12767@benge.graphics.cornell.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.4i In-Reply-To: <200001032308.SAA12767@benge.graphics.cornell.edu>; from Mitch Collinsworth on Mon, Jan 03, 2000 at 06:08:25PM -0500 Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Mon, Jan 03, 2000 at 06:08:25PM -0500, Mitch Collinsworth wrote: > > >> >Now I saw in the Magazine, that there is a similar drive available, > >> >with 2 MB cache and another drive which has additionally 7200 U/min. > >> > > >> >Does somebody know the following drives ? > >> >U92720U8, 27.2 GB, 9ms, 2MB cache, 5400 U/min DM 440.- (~ $220) > >> >U92732U8, 27.3 GB, 9ms, 2MB cache, 7200 U/min DM 460.- (~ $230) > >> >U93652U8, 36.5 GB, 9ms, 2MB cache, 5400 U/min DM 585.- (~ $290) > >> >U94098U8, 40.0 GB, 9ms, 2MB cache, 5400 U/min DM 635.- (~ $315) > >> > > >> >Do you think, the large drives (36.5 or 40 GB) will run under > >> >FreeBSD 3.4 and 4.0 current well ??? > >> > >> >From what we've been hearing they will probably be fine, though with > >> 3.4 you will have to either make partitions no larger than 27 GB or > >> else use the new IDE driver from 4.0. > > > >when, if, such ddevices become available for the scsi bus will > >the end user require doing anything special, ummm, that is take > >sepcial measures like your proposing for the 'ide' type bus > >version of these large drive devices ? i've use scsi where ever > >possible, because of the inherent reliability and performance > >(for my meager requirements) issues, such as they are. > > when/if? SCSI is ahead of IDE. I have sitting here on the floor by > my desk a box containing two 50 GB SCSI drives purchased a couple weeks > ago. I have yet to install them but as far as I'm aware from reading > the freebsd lists there are no such problems as that above with large > SCSI disks and freebsd. andreas, jason, mitch and several others who posted email ... thank you all for your help with my some what behind the times information. since i retired from 'active services' i've become a bit 'outof date' as regards whats happening. part of what sourred my post was the memories of 9 gb seagate barracudas being put into www servers in a 'warm' sydney summer afternoon. yes warm afternoon, the barracuda would get so hot that the media would demagnetise, turn it off and let it cool down a few hours and it would be right as rain till the next 40 deg C afternoon. so i was wondering if the new ones had the same sort of problems, it appears that they do not. as fro the cluster count, it looks like after the larger than 1 gb devices those things got sorted out for scsi and our next zone of contention might be the 2 terabyte boundry, as jeremy pointed out. anyway, thank you all for responding and sheading light on my confusion. i'd always thought that scsi was the better way to go, either fro the 'comercial' environment or the ever more demanding 'home' environment. with warm regads and much apreciation. cheers jonathan -- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message