🚀 go-pugleaf

   Can anyone tell me how to 'set' or 'force' a specific 
interleave when low-level formatting a harddisk on the 3000?
   Here's why I want to do this.  
   I have just moved up to a 3000 from a 1000.  On the 1000 I
was using a 80 meg. MFM disk with an Adaptec 5500 MFM to SCSI
interface and a Comspec controller.  This setup was not fast,
but it was better than floppies.  Tests revealed the optimum
interleave for this combo was three, yielding a DiskSpeed 3.1
rating of approx. 130-140,000.
   I plugged this drive/interface into the 3000 and did not
low-level format it (in a failed attempt to retain the data
on the drive).  I partitioned the drive and did an AmigaDOS
format.  DiskSpeed gave a 172,000 rating on this.
   I then used the 3000 to do a low-level format and the drive
now tested out at 253,000.  I figured from this that the
interleave had been set lower than the three it was before,
but I had no way of knowing what it was.
   I hooked the drive back up to the 1000, and low-level
formatted it with an interleave of two, then moved it back to
the 3000 for partitioning and testing.  I got an identical
253,000 rating, so I guessed that the interleave arbitrarily
choosen by the 3000 software was two.
   Mad impetuous fool that I am, I then moved the drive back
to the 1000, and low-leveled it with an interleave of one.
Back on the 3000 for partitioning and testing, I got (are you
ready for this?) 436,000 !!!!  It isn't as fast as the Quantum
inside (612,000) but I like it.  It has worked without any
problems for several days.
   Now, does this mean I have to keep my 1000 and Comspec
around just in case I ever want to low-level format this, or
another drive?  And the question that keeps nagging at me is,
what is the interleave on the internal Quantum?  Maybe it is
only two, and would scream if I could lower it to one?
  -=[ Lon ]=-
 lon.leader@canremote.uucp
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