🚀 go-pugleaf

In Article: 33076 of comp.sys.amiga Jason Chung writes:


>     I have just recently purchased the Trumpcard 500 and I have a few
>    questions and answers for anybody interested.
>     
>     After formatting and setting my ST-157N-1 into two partitions, I got
>a total formatted space of 45.8 meg.  Someone mentioned of a way to increase
>this and I was wondering how it is done.
>     Second, the interleave was supposed to be set at 3:1 in the default
>parameters of the TCUTILS program but someone on PLink mentioned that a
>setting of 2:1 increased his access time significantly.  I followed suit
>and was wondering if it really does help.

Here are some answers :


Jason was wondering about interleave.  I changed mine to 1:1 and found a 
*** small *** increase in performance, but I started getting random read/
write errors so I changed it back.  I have been told that the errors 
could be the controller not being fast enough for the ST-157N-1 in that 
interleave. I don't know, but setting it back fixed my problem.

About storage space. I have 47.1 Megs, here's how.

   1 - Find the file DEVS/IVS_SCSI.DRIVES
   2 - Find the section headed ST157N
   3 - Modify it as follows :
   
   
>other drive definitions here<

-ST157N
.Format 04 00 00 00 0E 00
.InterleavePosition 4
.Interleave 14                       <- this is interleave for OFS.
.FFSInterleave 3                     <- change this to 1 or 2 to try a 
.RequestSenseCmd 03 00 00 00 1B 00      faster interleave with FFS.
.ParkCmd 1B 00 00 00 00 00
.CAPACITY 94860                      <- change this from what ever to 94860.
.FirstCylinder 02
.Cylinders 607                       <- change this from 599(?) to 607.
.Heads 6
.BlocksPerTrack 26
.BlockSize 512
.BBScanType 1
.Flags 0
#

>other drive definitions continue<

   4 - REINSTALL your hard drive. Low level format, add to mountlist,
       everything  **EXCEPT** AmigaDos Format.
       
   5 - I had problems with IVS formatting after my modifications, but
       mount any partitions (LOW LEVEL FORMATED ONLY) and then use the
       standard FORMAT (v1.3 or 1.3.2) with the FFS option on each
       partition.
       
   6 - Now if you didn't write startup information to the drive do so.
       (Remember to only write the info for your boot partition.)
       
   7 - Type INFO to verify the drive size. With only two partitions this
       should be 47.1 Meg.  With only one partition it should be close to
       or better than 48 Meg.  (Which is good considering its only 49Meg(?)
       unformatted.)

   8 - Reload your software and your ready to fly.
   




   //|  Todd Lowe                      |          
  //_|  Acadia U.                      |   871579l@aucs
\X/  |  Wolfville NS                   |