Fast Disk Controllers on a Sun-3

[Gary Newman]

I have been using the Interphase VSMD-3200 controller with a fujitsu
double eagle (2.4 Mb/S) disk on my Sun-3 in hopes of getting fast disk
transfers.  I have been using the Interphase supplied device driver with
no hacking on my part.

The best performance I have seen to date is about 0.75Mb/S for
10Mb reads from the raw disk.  The hardware should be able to do
close to 2 Mb/S... anyone out there know why it's so slow?  
Interphase claims that they are looking into it (they don't know why).

Has anyone seen better performance than this from a disk?  
Any better disk controllers on a Sun-3?  I'm only considering
VME boards, no multibus adapters.

Please reply via mail & I'll summarize for the net.

Gary Newman @ Eikonix
(617) 275-5070
{adelie, encore}!munsell!ghn