VS2000 speed (was RE: A Hobbyist DECnet Network)

Allison 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).
>
>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




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