Date: Fri, 30 May 97 11:45:53 From: "Francisco Reyes" <francisco@natserv.com> To: "freebsd-chat@freebsd.org" <freebsd-chat@freebsd.org>, "Stephen McKay" <syssgm@dtir.qld.gov.au> Subject: Re: IDE or Ultra SCSI Message-ID: <199705301538.LAA02031@federation.addy.com>
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On Fri, 30 May 1997 22:07:35 +1000, Stephen McKay wrote: >On Friday, 30th May 1997, J Wunsch wrote: >Is IDE (in theory) really as good? I understood that only one outstanding >command was possible with IDE, meaning only one disk could be active at >a time, versus many simultaneous commands with SCSI. Am I out of date? >From my understanding IDE can do one command "per channel". So if you have a CDrom and a HD if they are on different channels each can process one command. Check http://sysdoc.pair.com (great hardware technical info). > >So I have to keep telling myself what an investment in brain cells I have >with SCSI, how it always works (well it does for me), and how every IDE >system that I've tried to put 2 disks in, or take one drive out of, has >been such a pain that I've given up. Then I calculate my hourly rate into >the equation... I decided to stay with SCSI, but I am talking to the vendor to see if they can get me plain SCSI (Adaptec 2940 instead of 2940U) and just plain old SCSI-2 drives. If that vendor can't give me a competitive price then I will have to do what I hoped I wouldn't have to do; get the HD subsystem from one vendor, the rest of the system from another and get my hands dirty installing the dam thing (I hate dealing with hardware).home | help
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