[comp.sys.amiga.tech] Supra question.

so-atk@stekt.oulu.fi (Antti Kyll|nen) (09/23/89)

This is my second time I'm writing about Supra HardDrive
speed problems but this time I have more info about this
phenomenon to aid you people out there who might just be
able to give a full answer.

The part of my system that is relevant consists of an A500
with 1MB RAM and a 30MB SupraDrive with Supras SCSI
Interface. The software I would like to use should be the
latest version, 1.6b, that is. At first, I used 5.1a
but due to the fact that a friend of mine got more speed(170k/s)
on his SupraDrive with 1.6b, I decided to change to that.
Although, this has not given the results that I would like
to see, as here are the DiskPerf2 results in a shortened form:

File create/del : 9/sec, 17/sec
Dir scan: 100/sec
Seek/Read: 72/sec

r/w: 34721 bytes/sec, 27776 bytes/sec
     53407            42625
     53362            46125
     52254            47953
     52958            49813
     52780            49932   (with buffers of appx. 260kB)

Me and my friend have checked our drive parameters and they
should be the same. For more info, here comes: Interleave 3,
Pri 0, Buf 30, Type FAST, Trans $FE00, Mask $FFFFFF, Dos
$444F5301, Filesystem FFS. I have tried to solve this for a
couple of weeks now but seem to be in a dead-end.

Any ideas other than selling the drive :-?

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