Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!unix.cis.pitt.edu!dsinc!bagate!cbmvax!jesup From: jesup@cbmvax.commodore.com (Randell Jesup) Newsgroups: comp.sys.amiga.hardware Subject: Re: A3000 SCSI and drives > 1GB Message-ID: <19965@cbmvax.commodore.com> Date: 19 Mar 91 01:29:11 GMT References: <1991Mar8.200331.5111@javelin.es.com> Reply-To: jesup@cbmvax.commodore.com (Randell Jesup) Organization: Commodore, West Chester, PA Lines: 26 In article <1991Mar8.200331.5111@javelin.es.com> blgardne@javelin.sim.es.com writes: >dave@bryce.UUCP (Dave E Martin) writes: >>Can someone tell me if the A3000 Hardware/software can >>properly access drives that are bigger than one GigaByte? > >Yes, but the version of the FastFileSystem that's in KS 2.02 has a bug >that limits partitions to 512 megabytes. I understand that this has been >fixed for the next release (whenever that is). Yup. >>Does it use group 0 or group 1 scsi commands, or something else? > >No idea, sorry. It uses extended reads/writes for >256 block IOs, and if one fails due to an unknown command, it sets the max transfer size to 256 blocks (so it won't try to use them again). We're looking at putting in a test for a block number greater than the maximum size read(6) can handle ($1fffff). -- Randell Jesup, Keeper of AmigaDos, Commodore Engineering. {uunet|rutgers}!cbmvax!jesup, jesup@cbmvax.commodore.com BIX: rjesup The compiler runs Like a swift-flowing river I wait in silence. (From "The Zen of Programming") ;-)