Path: utzoo!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!gvlf3.gvl.unisys.com!alee!erickson From: erickson@alee.UUCP (Lee C. Erickson) Newsgroups: comp.sys.amiga.hardware Subject: Re: Re: SCSI-1 vs. SCSI-2 Message-ID: <910317.175932@alee.UUCP> Date: 17 Mar 91 22:59:32 GMT References: <1991Mar8.200331.5111@javelin.es.com> <19745@cbmvax.commodore.com> <2216@wet.UUCP> Organization: InnovaSystems, Inc. Lines: 26 In article <2216@wet.UUCP>, pk@wet.UUCP (Philip King) writes: >In article <19745@cbmvax.commodore.com> daveh@cbmvax.commodore.com (Dave Haynie) writes: >[...] >Dave, does this mean that Amiga hard disk controllers support synchronous >transfers? I don't think I've ever seen any of the host adaptor >manufacturers claim that. The newer GVP controllers support synchronous mode. > >I happen to have a drive that supports this, and I wouldn't at all mind >if I could speed it up! It's the Seagate/Imprimis ST-1239N/94350-230S >model, 200MB 15ms. Apparently it's got an onboard cache memory like the >Quantums, but it doesn't default to 'on' mode. Someone told me that there >might be a way to activate it, if you could talk directly to it with some >kind of program that issues SCSI commands. Any insight on how I might >achieve that? Thanks in advance... You would have to issue a drive-specific "mode select" command. ----- Lee Erickson uucp: erickson@alee.UUCP ..!psuvax1!burdvax!gvlv2!alee!erickson internet: erickson%alee@gvl.unisys.com usmail: 720 Raynham Rd., Collegeville PA 19426