SUMMARY: KVM switch power-down causes Alpha's to Halt

From: Browett, Darren <dbrowett_at_city.coquitlam.bc.ca>
Date: Thu, 26 Apr 2001 11:51:54 -0700

First, thank you for the responses.

Len Whitwer
Izzet Ergas
Jonathan Burelbach
Alan Davis
Chuck Taylor
Tom Webster
Mandell Degerness
Dr. Thomas Blinn

>From all the reponses it is fairly clear that this is a known issue, not
only with Alpha's but
unix systems in general. Work-arounds to this situation would be :

1. Plug in a seperate keyboard,mouse and monitor for each of our systems, or
at least the ones that
   are mission critical.

2. Try using guardian from raritan ( or as one response said "a little
Y-cable thing " ) which
  according to the advertising "ensures nonstop computer operations in case
of
  power failure to the switch"

Darren ( Who is in the process of calling his raritan dealer :) )


Original Question

We have a Rariton KVM switch to provide access to our Alphas and NT servers.

Yesterday, we wanted to do some configuration changes, so we powered-down
the KVM switch. When this happened two of our Alphas "Halted" (Black
Screen)
When I got the Alphas running, there was no indication that a crash even
occured.

>From what I understand we should be able to disconnect Keyboard, video
and/or mouse and not affect the system(s).

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Darren Browett P.Eng This message was
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Received on Thu Apr 26 2001 - 18:52:56 NZST

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