9 Dec
2005
9 Dec
'05
11:39 a.m.
Subject: RE: VS2000 speed (was RE: A Hobbyist DECnet Network)
From: "a.carlini at ntlworld.com" <arcarlini at iee.org>
Date: Fri, 09 Dec 2005 19:03:42 +0000
To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk
at classiccmp.org>
Robert Armstrong wrote:
Wolfgang Moeller produced some patches way back when for the
uVAX/VS 2000 that would allow it to use a SCSI disk.
Never actually tried it myself (as I had RD drives available
and faster machines if I just wanted speed).
Antonio
I have RD drives so I never tried it. I also now have RZ drives and
it would be a good time to try it.
Allison
The VS2k
is a bare bones uVAX-II cpu and inst very fast but I never
thought the boot to be unusually slow unless the dianogstic
were running.
RD5x drives are painfully slow, and this is especially a problem in
the VS2000 because the integrated disk controller a) lacks DMA, and
b) lacks the T11 chip to do local processing found in a RQDXn - the
uVAX CPU has to do all the work.