[comp.sys.amiga] HD Questions

carpent@coltrane.SRC.Honeywell.COM (Todd P. Carpenter) (11/29/88)

Hello!  I have been reading this group for a few months, and it firmly
convinced me to purchase an Amiga.  The help from CATS, DOGS, GOATS and HOGS is
really appreciated.  I'm the proud father of a bouncing 2000 (KS 1.3)!  I do
have some questions:

1)
  I plan on purchasing an A2090a SCSI and installing a Rodime R05180 drive.
  This is a beastie with:
     7 heads, 1218 cylinders (1223 total), internal bad sector logging,
     10 Mhz (maybe 12MHz), 18msec (maybe 12msec), 5 1/4" disk, 180MB disk.
  Does anyone have any experience with Rodime 5 1/4" drives?  Do you see any
  problems with this setup?

2)
  In an unrelated note, has anyone ported Gnu Emacs yet?  Is there an ftp site
  that I can grab it from?

3)
  I got Digi-view for some fun.    I didn't want to spend $22.00 on their
  gender bender, so I just hooked up a normal cable gender bender (to convert
  from A500 to A2000).  Does anyone know it you can use this with
  output from a VCR (RCA output) or do you really need the camera (I tried, but
  all I get is "video signal not present").


Thanks in advance.

  Oh, email may (depending on your server) have to be addressed to:
  carpent@altura.honeywell.com

Disclaimer?  I didn't say anything!  I wasn't even there!  No!  Don't take me
awwaayyy!  Mom!

raddison@castor.usc.edu (Richard Addison) (12/02/88)

In <12595@srcsip.UUCP> carpent@coltrane.SRC.Honeywell.COM (Todd P. Carpenter)
 writes:
>2)
>  In an unrelated note, has anyone ported Gnu Emacs yet?  Is there an ftp site
>  that I can grab it from?

Fred fish disk #147 has MicroGNUEmacs(MG 2b), but it probably doesn't have
all the features you may be used to on the full blown Gnu Emacs.

>3)
>  I got Digi-view for some fun.    I didn't want to spend $22.00 on their
>  gender bender, so I just hooked up a normal cable gender bender (to convert
>  from A500 to A2000).  Does anyone know it you can use this with
>  output from a VCR (RCA output) or do you really need the camera (I tried, but
>  all I get is "video signal not present").

This is the pinout of the parallel port on the 1000:

pin    name
1      /STROBE
2-9    D0-D7
10     /ACK
11     BUSY
12     POUT
13     SEL
14     +5V PULLUP
15     NC
16     /RESET
17-25  GND

This is the pinout of the parallel port on the 2000:
pin    name
1      /DRDY
2-9    D0-D7
10     /ACK
11     BUSY
12     POUT
13     SEL
14-22  GND
23     +5V
24
25     /RESET

So, if you have something that is designed to connect to the 1000, but
you have a 2000 or a 500, wire a gender-bender with pins 1-13, 14, 16,
17-22 of the 2000's connector across to pins 1-13, 23, 25, and 17-22,
respectively, of the device's connector.

Anyone who tries to do this wiring will have to take responsibility
for any problems--I cannot assume any liability for mistakes here,
although I believe it to be accurate.

Richard Addison  (Lincoln loved plenty bacon--and how!)

stephen@hpdml93.HP.COM (Stephen Holmstead) (10/27/89)

I have a couple of HD questions:

First, I have a 380 Mb SCSI hard disk that I have formatted to autoboot with
a Trumpcard SCSI controller.  I disconnected the drive, and hooked it up
to a Commodore A2090 controller, but it won't work.  AmigaDOS says that
the HD is "NOT A DOS DISK".  Why?  I assume that the controller specific
information on cylinders 0-1 is different for the Trumpcard and the
A2090.  Is there any way to have the A2090 re-write the information it
needs to those cylinders without reformatting the entire disk?  I tried
the HDPrep routine, but it said it would erase all of the files.  I assume
that the mountlist entry will not change (is this faultly logic?).  Has
anyone ever moved a HD from one controller to another?  What else can I
try?

Second, does anyone have any experience with the Adaptec ESDI->SCSI
converter?  I need to get an 380 Mb ESDI drive to work with the Amiga.
The problem is that most SCSI controllers on the Amiga require 512 byte
blocks.  The drive has 256 byte HARD sectors.  Is there any way to get
the Adaptec to convert the 256 byte physical sectors to 512 byte logical
blocks?  Has anyone ever even used the Adaptec ESDI->SCSI converter?

Thanks for any help or experiences.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Stephen Holmstead
...!hplabs!hpdmlge!stephen                      //
Hewlett Packard Disk Memory Division          \X/  Amiga Forever!

"I remind you that humans are only a tiny minority in this galaxy."
	-- Spock, "The Apple," stardate 3715.6.