keithl@loop.UUCP (Keith Lofstrom) (02/09/90)
Any GSII hard drive hackers out there? After a year of faithful service on my Mac, my homebrew 20 meg SCSI hard drive is migrating to the Apple II GS of a young friend of mine (Say Hi, Lindsay. "hi"). Unfortunately, I know nothing about IIGS; young friend knows little about OS details. The drive is a 20 Meg Micropolis 1302, 830 tracks, 3 heads, 18 sectors, 3600 RPM, 6ms (!!) access, with an Adaptec 4000A controller. I have formatted it on the Mac with Fractal Formatter or Silver Lining 5.2, either works fine, on the Mac. I am formatting with an interleave of 3, and entering the bad blocks with Fractal. Silver Lining claims to be able to write a ProDos partition. When I move the drive to the IIGS, it can't find partitions; OK, an initialize and an erase seems to make a proper drive. The fun happens when I start moving files to it; after some random number of files it stops copying with an error "8051". At this point my only option seems to be to erase the disk and start again. We are running a ProDos 5.02 ( an "unofficial" copy made by a local dealer ... a real copy is on order ). The Apple SCSI card is in slot 7. Any ideas? Can this be made to work? Will Lindsay be able to launch Math Blaster without using the floppy? I am not interested in becoming an Apple IIGS expert; some cookbook directions would be wonderful, but a pointer to a book or article would be OK, too. Thanks a Meg; Keith -- Keith Lofstrom keithl@loop tektronix!psueea!qiclab!loop!keithl Launch Loop, P.O. Box 1538, Portland, Oregon 97207 (503)-628-3645
gsnow@pro-freedom.cts.com (Gary Snow) (02/12/90)
In-Reply-To: message from keithl@loop.UUCP > The drive is a 20 Meg Micropolis 1302, 830 tracks, 3 heads, 18 sectors, > 3600 RPM, 6ms (!!) access, with an Adaptec 4000A controller. I have > formatted it on the Mac with Fractal Formatter or Silver Lining 5.2, either > works fine, on the Mac. I am formatting with an interleave of 3, and > entering the bad blocks with Fractal. Silver Lining claims to be able to > write a ProDos partition. I would suggest that your interleave is too much for the GS, try a higher number. Gary _______________________________________________________________________________ UUCP: crash!pnet01!pro-freedom!gsnow | ProLine: gsnow@pro-freedom | Pro-Freedom: (206)253-9389 ARPANet: crash!pnet01!pro-freedom!gsnow@nosc.mil | Vancouver, Wa InterNet: gsnow@pro-freedom.cts.com | _______________________________________________________________________________
joseph@elbereth.rutgers.edu (Seymour Joseph) (02/13/90)
Despite many attempts, I have never been able to get an Adaptec or other "adapted" SCSI drives to work on the IIGS. I had no problem with true imbedded SCSI drives. I was unable to interface a Mirror 20x or a Nova 30. Both use some kind of external SCSI adapter. No one on the net was too helpful as to why... I just spent lots of time and buckage finding it out. Seymour
cwilson@NISC.SRI.COM (Chan Wilson) (02/14/90)
In article <Feb.12.18.27.00.1990.6532@elbereth.rutgers.edu> joseph@elbereth.rutgers.edu (Seymour Joseph) writes: >Despite many attempts, I have never been able to get an Adaptec or >other "adapted" SCSI drives to work on the IIGS. I had no problem >with true imbedded SCSI drives. I was unable to interface a Mirror >20x or a Nova 30. Both use some kind of external SCSI adapter. No >one on the net was too helpful as to why... I just spent lots of >time and buckage finding it out. Yes, I've noticed this also. I haven't dug into the problem and found out the cause (nor a solution) but perhaps it is due to the SCSI card. Can DTS shed any light on this? Like so: Take a dataframe 30 meg; this uses an adaptec board. Works fine on the mac; using DM Mac I can format, interleave, etc. (DM Mac is a generic scsi HD formatter) Take the same dataframe, attach it to the Apple SCSI card. _Nothing_ will recognize it as being a SCSI device. It just sits there, a brick on a cord. Sounds like a SCSI Card problem to me.... >Seymour --Chan ................ Chan Wilson -- cwilson@nisc.sri.com <or> radius!cwilson@apple.com Janitor/Architect of comp.binaries.apple2 archive on wuarchive.wustl.edu I don't speak for SRI, someone else does. ................