MSCP SCSI controller speed

[Zane H. Healy]

>Hi list,
>   After some non-sleeping nights the QBUS MSCP SCSI controller is now
>usable except that it is still controlled by the PC. I installed
>NetBSD 1.5.2 and ran "cp base.tgz /dev/null", and the speed tested was
>840KB/s.  I am wondering how fast those commercial controllers are. I
>would appreciate it if those of you who own those boards could let me
>know. The design goal is to approach the fastest.

I believe the CMD controllers are supposed to be the fastest, 
something else to consider is that the Q-Bus itself is only something 
like 3.5MB/Sec (does anyone happen to remember the exact numbers). 
If I can find the time, I can run a test under RT-11 on my PDP-11 
(Viking QDT).

		Zane



-- 
--
| Zane H. Healy                    | UNIX Systems Administrator |
| healyzh at aracnet.com (primary)    | OpenVMS Enthusiast         |
|                                  | Classic Computer Collector |
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