Date: Tue, 14 Dec 1999 08:19:17 -0600 (CST) From: David Scheidt <dscheidt@enteract.com> To: Olaf Hoyer <Inferno@nightfire.de> Cc: chat@FreeBSD.ORG Subject: Re: dual 400 -> dual 600 worth it? Message-ID: <Pine.NEB.3.96.991214075923.28692B-100000@shell-1.enteract.com> In-Reply-To: <4.1.19991214051944.00c08e80@mail.rz.fh-wilhelmshaven.de>
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On Tue, 14 Dec 1999, Olaf Hoyer wrote: > >There are those of us who have machines that need long cables. One of the > >boxes I manage has disks that are 15 meters away from the CPU cabinet. If > >you need to have hundreds of disks, you can't have silly cable lengths. Of > >course, the next generation box will be all Fibre Channel, but still. Even > >on my home box, I have a need for greater than 1 metre bus lengths. > > Yes, but if someone really needs, say 20 disks/CD-ROMs attached some meters > away from your box, wouldn't it make sense and be cheaper to put them in a > dedicated file server /server box and attach them via a fast network? I am waiting to meet a network that can do 400MB/S -- the agregate throughput of 20 Fast/Wide/Differential SCSI controllers. > > BTW: How do they the 15 meters? High voltage differential FW SCSI. The spec allows fro a cable length of 25 metres. With good cables, controllers, disks, enclosures, and terminators, you can do 30, though I wouldn't for a production box. David scheidt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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