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For assistance with a problems related to Central Services:
Some general diagnostics:
Consult the keeper of the Service (Linux
If you cannot get to this WWW page or console page D15 you have more global
For general trouble shooting--and as alternates to other problems--consult
(in order): Jim Smedinghoff or Brian Hendricks.
For problems with the Linux machines themselves (not the services running on them)
consult Jim Smedinghoff or Denise Finstrom.
If the network infrastructure (hardware, routing...etc.) appears OK, but
you cannot call up a console page (CPLD failure) consult Jim Smedinghoff or Brian Hendricks.
For problems with ACNET (task-to-task communication) itself consult
Rich Neswold or Charlie King.
Console page D130 show status of Heartbeat to the Central Services.
It will tell you if a process is running and has a base level of ACNET
communication ability. Heartbeat will generate a console alarm for most
processes that it monitors.
Console page D31 ('Central Nodes' subpage) polls ACNET nodes, looking
for response from a ping. This page also displays information about the
nodes-- interrupt under the 'Type' column for the node of interest.
You can check for any missing Linux Central Service with the use of the
command. From any central Linux server, type "acnet show". A list of Central Services
will be shown--appended with a list of any missing processes. Acnet show
will tell you if the process is running--nothing more. D130 tells if the
process is running and can be communicated with, via ACNET.
Some miscellaneous configuration background:
The URL for this page is http://www-bd.fnal.gov/controls/central_s/call_in.html
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