delingma@THUNDER.LAKEHEADU.CA (08/30/90)
I recently saw a message posted somewhere that mentioned an Adaptec controller card that allowed one to convert up to 2 RLL drives for use with a SCSI setup. Has anyone tried this type of thing with a Mac? How much does it cost? Where can I get one (or even just more info on it)? Any Tips are appreciated (I have an RLL 20 Meg drive, and I would REALLY like to use it on my Mac...) Thanks Dan Lingman (delingma@thunder.lakeheadu.ca) QUIT
joe@cbnews.att.com (Joseph Judge) (09/02/90)
The Mac expects *one* drive per SCSI ID. A board can have only one ID. So, you can only hang one drive off of one board for the Mac. Adaptec (and tons of other places) make SCSI/ST506 boards that can do the RLL. Just make sure that your drive can handle it (a lot of newer drives can, I think. The docs should say.) If not, get a board that does MFM. See my previous posting (posted 5 mins ago) about doing this homebrew hardrive thing. I've been thinking about SCSI drivers these days... there has to be a way to hang an extra drive off of the board and get to it from the Mac. Hmmmm... too much work :( Joseph Judge joe@cblpf.att.com delingma@THUNDER.LAKEHEADU.CA writes: > I recently saw a message posted somewhere that mentioned an Adaptec > controller card that allowed one to convert up to 2 RLL drives for use > with a SCSI setup. Has anyone tried this type of thing with a Mac? > How much does it cost? Where can I get one (or even just more info on it)? > > Any Tips are appreciated (I have an RLL 20 Meg drive, and I would REALLY like > to use it on my Mac...)
heynneman@einstn.enet.dec.com (Al Heynneman) (09/06/90)
I run an Adaptec 4000A controller with TWO ST225 drives, and a 4070 with an RLL ST238 on my MacXL, using Software Architects driver. They're located in Washington, if memory serves me correctly. Cheers, Al 70110.611@compuserve.com
emmayche@dhw68k.cts.com (Mark Hartman) (09/14/90)
joe@cbnews.att.com (Joseph Judge) writes: > The Mac expects *one* drive per SCSI ID. A board can have only one > ID. So, you can only hang one drive off of one board for the Mac. What's interesting about this, Joe, is that my SCSI ID #3 is a dual-drive IOmega Bernoulli Box 2, and it runs both drives just fine. Just my $0.02.... -- ------------ Mark Hartman uucp: ...{spsd,zardoz,felix}!dhw68k!emmayche Internet:emmayche@dhw68k.cts.com CompuServe: >internet:emmayche@dhw68k.cts.com Applelink: N1083
michelr@xstor.UUCP (Michel Rynderman) (09/20/90)
In article <1990Sep14.050047.2323@dhw68k.cts.com> emmayche@dhw68k.cts.com (Mark Hartman) writes: >joe@cbnews.att.com (Joseph Judge) writes: > >> The Mac expects *one* drive per SCSI ID. A board can have only one >> ID. So, you can only hang one drive off of one board for the Mac. > >What's interesting about this, Joe, is that my SCSI ID #3 is a dual-drive >IOmega Bernoulli Box 2, and it runs both drives just fine. > >Just my $0.02.... >-- >------------ >Mark Hartman According to SCSI there can be 8 devices per scsi id. All have the same id but their logical unit numbers that are specified in the command allow up to 8 devices. Some drives support this, some don't. The one controller card on the main drive handles the commands for all the drives. Michel Rynderman Storage Dimensions, Inc. uunet!xstor!michelr