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Newsgroups: comp.unix.bsd Path: sserve!manuel.anu.edu.au!munnari.oz.au!uunet!usc!sol.ctr.columbia.edu!ira.uka.de!ira.uka.de!smurf.sub.org!flatlin!bad From: bad@flatlin.ka.sub.org (Christoph Badura) Subject: Re: ISA is faster than EISA ? (Was: Re: DOS and 386BSD (and NT and OS2)) Organization: Guru Systems/Funware Department Date: Sun, 25 Oct 1992 23:13:17 GMT Message-ID: <Bwp9u6.918@flatlin.ka.sub.org> References: <1992Oct16.175743.19250@fcom.cc.utah.edu> <1992Oct21.160231.6516@ntuix.ntu.ac.sg> <1992Oct22.093459.13824@autelca.ascom.ch> <BwIwu4.Mx6@pix.com> <1992Oct23.140133.29341@microware.com> Lines: 26 In <1992Oct23.140133.29341@microware.com> adam@microware.com (Adam Goldberg) writes: >For an average of 1.76MB/second. [On OS-9000] I don't see how you arrive at an *average* of 1.76MB/s when you get half the time 1.76MB/s and half the time (actually more than half in your numbers) ~1.5MB/s. >Once upon a time, I hooked the same drive up to a Compaq 486/33M (EISA) >with an Adaptec 1740 and got transfer rates in the neighborhood of >7 MB/second. With what drive. Certainly not with >256KB files of that Quantum drive. >You don't need to buy a house for high transfer--you need an OS which >allows synchronous SCSI transfers. And in the case of Adaptec or BusLogic (formerly BusTek) controllers you don't need OS support for synchronous SCSI transfers as the host adapters negotiate that with the drive without os intervention. -- Christoph Badura --- bad@flatlin.ka.sub.org AIX is a better... is a better... is a better... OpenSystem. IBM Rep at GUUG Symposium '92