Date: Wed, 04 Mar 1998 16:14:32 -0800 (PST) From: Simon Shapiro <shimon@simon-shapiro.org> To: Wilko Bulte <wilko@yedi.iaf.nl> Cc: grog@lemis.com, hackers@FreeBSD.ORG, blkirk@float.eli.net, jdn@acp.qiv.com, tlambert@primenet.com, sbabkin@dcn.att.com, karl@mcs.net Subject: Re: SCSI Bus redundancy... Message-ID: <XFMail.980304161432.shimon@simon-shapiro.org> In-Reply-To: <199803042211.XAA04270@yedi.iaf.nl>
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... > Or a FibreChannel array. Will be playing with that for the rest of the > week. I'm pretty curious to see how that behaves. Ah, the first usable and functional disk channel to hit small computers. The demos I saw several years ago showed over 1,700 TPS to a single drive. And it is redundant, EMI/RFI clean, wonderful, and expensive. ... > I don't know if DPT will be part of our product offering. I play with > what they throw at me ;-) The FC array is cute so I don't complain. I do NOT work for DPT. I get generous help when I need it. But they have an FCAL HBA someplace. There was another company in Colorado (?) which had a controller. They promised me a card to write the FreeBSD driver, but I never hear from them anymore. ... >> the ball on tracking these down but will pick it up soon. SMP is twice >> as slow as UP in these tests. > > Somebody/something locking resources? But that is definetely worth > investigating for SMP users. Yup. I never invoked any interest in this phenomenon, other than ``if you find why, give me the patch''. Simon To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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