Re: SCSI Utils Questions

[dempson@swell.actrix.gen.nz (David Empson)]

In article <2h4dviINNr1j@no-names.nerdc.ufl.edu> where@maple.circa.ufl.edu writes:
> Has anyone seen a PD/Shareware program that can tell what the SCSI ID# for
> a particular drive is? Or fhr that matter, what is hooked up to the SCSI
> chain at all?

There used to be a shareware program called SCSI HACKER floating
around.  I believe it only worked with the original Apple SCSI card,
and is no longer available.

The best program for Apple SCSI cards (original and High Speed) is
Chinook SCSI Utilities (CSU).  This is a commercial program.  I don't
know what its current status is, since Chinook have left the Apple II
market.  Sequential Systems might have taken the program over, or you
may be able to buy a second-hand copy from someone.

CSU is ProDOS-8 based, and will work on a IIe or IIgs.  It can do
various disk tests (speed, interleave, bad blocks), display
information about each drive (serial number, bad block tables,
partition maps, SCSI ID, etc.), and partition and format drives.  It
can also map out bad blocks (if the drive supports this operation) and
can clear the bad block table.  [Some features require a High-Speed
SCSI card.]

It is a lot more flexible in its partitioning than the Apple
'HDSCPARTITION' program, supplied with the SCSI card.  Advanced Disk
Utility beats it in the case of the IIgs.

>     I've also got the following problem: I've got a SCSI drive with bad
> sectors located in various places throughout the drive. Has anyone seen a 
> IIGS/Prodos SCSI Util to map and not use those parts of the disk?

With most modern SCSI drives, reformatting the drive should
automatically map out the 'bad' sectors.  Otherwise, you probably need
to use a utility program such as ProSel to create a "bad block file",
which keeps all of the bad blocks together and prevents them from
being allocated to normal files.

>    Finally: How does one go about UN-Partitioning a SCSI disk? I managed
> to partition the darn thing into 3, but I cannot un-partition it.

Which SCSI card are you using?  I gather you have a IIgs, so which
version of the system software are you running?

If you have an Apple SCSI card, you should be able to delete
partitions using the Advanced Disk Utility program.  Note that any
attempt to re-partition the drive will destroy all the data that is
currently on the drive.
-- 
David Empson                                                               
dempson@swell.actrix.gen.nz                                                
Snail mail: P.O. Box 27-103, Wellington, New Zealand