Path: utzoo!utgpu!watmath!clyde!att!rutgers!mailrus!ulowell!cbmvax!jesup From: jesup@cbmvax.UUCP (Randell Jesup) Newsgroups: comp.sys.amiga Subject: Re: 2090A problem Message-ID: <5541@cbmvax.UUCP> Date: 20 Dec 88 21:32:00 GMT References: <2746@hplabsz.HPL.HP.COM> <14164@oberon.USC.EDU> Reply-To: jesup@cbmvax.UUCP (Randell Jesup) Organization: Commodore Technology, West Chester, PA Lines: 28 In article <14164@oberon.USC.EDU> papa@pollux.usc.edu (Marco Papa) writes: >The Documentation from the Quantum literatures is as follows: > >Disk Drive Prodrive Prodrive >Architecture 40S 80S >------------ -------- -------- >Capacity (formatted) 42 MB 84 MB >Heads 3 6 >Disks 2 3 >Track Format 28 and 35 sectors x 512 bytes >Number of data zones 2 2 >Tracks 2502 5004 Note that that's total tracks, not cylinders. Divide by 3 or 6 for cylinders. Something like 834 cylinders. Note that if you say the drive is too big, prep will accept that until you try to access, via format or just putting files there, those non-existant sectors. If you try, you'll get R/W errors. The trick with unusual drives is to figure out how many blocks there are on the drive, then feed prep (and the mountlist) figures that add up to the right number of blocks. Note that doesn't doesn't like more than 63 blocks per track currently, so don't tell it you have more than that, use heads and cylinders. >Quantum can be reached at (408)432-1100. -- You've heard of CATS? Well, I'm a member of DOGS: Developers Of Great Software. Randell Jesup, Commodore Engineering {uunet|rutgers|allegra}!cbmvax!jesup