VS2000 speed (was RE: A Hobbyist DECnet Network)
ajp166 at bellatlantic.net
Fri Dec 9 13:39:43 CST 2005
>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:
>>> 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.
>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).
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.
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