[Info-vax] How to convert a cluster-seeking vax into a networked stand-alone machine

Robert A. Brooks FIRST.LAST at vmssoftware.com
Fri May 3 17:20:21 EDT 2019


On 5/3/2019 4:36 PM, Michael Moroney wrote:
> Carlos Murillo <ce.murillosanchez at gmail.com> writes:
> 
>> Hello everyone;
> 
>> I've got a vaxstation 4k/60 running OpenVMS 7.2 that apparently has network
>> -induced problems.  The cpu spends 80% + of the time in interrupt stack mode,
>> which goes to zero if the AUI transceiver is disconnected.  Trying to isolate
>> the problem, I've disabled MOP serving, MSCP serving, pretty much all
>> server processes.  But of course, it still want it to do TCPIP.  How can I
>> configure it so that nothing cluster-related is involved in its sysgen-related
>> settings? Basically a TCPIP-speaking stand-alone workstation.
> 
> Why do you think this high interrupt stack time is cluster-specific and not just
> network-specific? If it's hardware (likely because of the age of everything)
> you'll see high interrupt stack time when doing TCP/IP or any networking. Anyway,
> Hoff's suggestions will disable clustering.

I'd disconnect the AUI cable and plug in loopback adapter to see if it's a 
physical layer issue.

We don't know if this system has clustering enabled, either.

-- 
                  -- Rob



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