Toru Nishimura drunkenly mumbled...
> 
> I have tested PMAZB-A on DEC3000/300 (150MHz 21064) expecting it would
> show any difference from builtin single channel TCDS.  It might have
[snip]
> disk performance measurements.  The result was simple; no gain nor
> loss between them.  It's interesting to notice because /300 has
> 12.5MHz TC option slot while builtin TCDS is directly attached with
> 
> I ran performance measurement on DECstation 5000/25.  It also showed
> little difference between the builtin IOASIC SCSI and PMAZB-A sat on
> 12.5MHz TC slot, so it's imprecative.

in both examples here you have tried the card in a half speed TC slot.  do you
have a machine with a full speed TC bus to test this on?  i'd be interested to
see if this is a limitation of the TC bus or the SCSI bus.

thanks!

-brian