Path: utzoo!attcan!uunet!cbmvax!daveh From: daveh@cbmvax.UUCP (Dave Haynie) Newsgroups: comp.sys.amiga Subject: Re: 2090A and DMA (was: Re: 2000-and-1 expansion box) Message-ID: <4921@cbmvax.UUCP> Date: 3 Oct 88 15:50:02 GMT References: Organization: Commodore Technology, West Chester, PA Lines: 33 in article , kim@amdahl.uts.amdahl.com (Kim DeVaughn) says: > Summary: I hope not ... > In article <12453@oberon.USC.EDU>, papa@pollux.usc.edu (Marco Papa) writes: >> The 2090A is identical to the 2090 except that it has autoboot >> ROMs. > Uh ... I really hope this is just an over generalization you've made, Marco, > and not true. I had thought the 54 Meg partition size limitation/bug was to > have gotten fixed in the 2090A. That's a bug in the Standard FileSystem, not the controller. Fast FileSystem fixes it, so you now get partitions around 2.5 Gigs if you can use 'em. > And also the number of heads limit, etc. There's no head limit on SCSI, due to the nature of SCSI (eg, it's all software aside from the SCSI port). The standard number of ST-506 heads, which is what the 2090 supported, was 8. At some point along it's lifetime, an additional line was usurped by several manufacturers to give you 16 lines. Don't know if this was ever done in a standard way (here's that CPU guy trying to answer a disk question again...), or if there's any chance 2090s or 2090As will support it. > CATS? Them too. > /kim -- Dave Haynie "The 32 Bit Guy" Commodore-Amiga "The Crew That Never Rests" {ihnp4|uunet|rutgers}!cbmvax!daveh PLINK: D-DAVE H BIX: hazy "I can't relax, 'cause I'm a Boinger!"