[comp.sys.ibm.pc.hardware] More from a Perstor Owner

mlord@bwdls58.UUCP (Mark Lord) (08/28/90)

About a week ago, I posted a preliminary review of the PS180-16FN
controller from Perstor.

I have successfully used this controller to boost the capacity of
a 40Meg Miniscribe 3650 to over 76 Meg (formatted), and a Seagate 251-1
to about 77 Meg (formatted).

The miniscribe has zero bad sectors, and the Seagate has only the same
bad tracks as were determined at the factory.  Unfortunately, DOS insists
on trying to "recover" the bad tracks for use.  This is a no-no.  
The Norton DT command can be used to mark individual clusters as bad,
but I have nothing for marking whole tracks.

In the meanwhile, I have acquired a 71Meg Priam drive to replace the
Seagate, giving me a much needed storage boost.  The Priam is NOT 
supported (officially) by Perstor controllers, but seems to work just
fine in most repects.  It formatted with 2:1 interleave, yielding 
about 113.4 Meg under DOS 4.01.  This is using only the first 1024 
cylinders of the drive (it has 1165 in total).  Suggestions on getting
at the other 20Meg of space will be welcomed.  The only hitch with
this drive, is that I cannot boot from it with the Perstor controller.
I guess this is where the "unsupported" phrase takes meaning.
No problem, I boot from the Miniscribe instead.

So.. my 40Meg Miniscribe is now a 76Meg drive, at 3:1 interleave.
 and my 71Meg Priam is now a 113 Meg drive, at 2:1 interleave.

Not bad, considering the Priam could only hold 60Meg in the first 1024
cylinders with my old controller.
-- 
 ___Mark S. Lord__________________________________________
| ..uunet!bnrgate!bmerh724!mlord | Climb Free Or Die (NH) |
| Ottawa, Ontario.  613-763-7482 | Personal views only.   |
|________________________________|________________________|

davef@videovax.tv.tek.com (David Fibush) (08/31/90)

I think perstore is great too.  I have used it to format a Segate 4096
to 143 MB.  The only thing I am unhappy about is the SpinRite doesn't 
work correctly.  It recognizes the drive and everything is ok until it
finds a bad sector.  Then it tries "forever" to analyze it.  Gibson says
"don't worry it will stop eventually" but I don't like my hard drive
restoring to track 0 continuously for many minutes.

Anyone else have this problem or a solution?