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From: stephen@hpdml93.HP.COM (Stephen Holmstead)
Newsgroups: comp.sys.amiga
Subject: HD Questions
Message-ID: <380046@hpdml93.HP.COM>
Date: 27 Oct 89 16:51:30 GMT
Organization: Hewlett Packard - Boise, ID
Lines: 30

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."
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