M
ONITORING
S
YSTEMS
You can monitor the CSX7000 cluster (each of its platforms or subsystems and each of its groups)
through the Environmental Management System, or EMS. Only one EMS module is necessary per
cluster; it resides in slot 15 of the first platform of the cluster. The EMS module monitors internal
fans and temperature, and controls the capability to power on (or off) individual platforms or
groups. It also carries out processor control commands in the CSX7000.
The EMS Processor Module is based on the Intelligent Environmental Sensor (IES) Supervisory System.
The sensors for the EMS Module are integrated into the IES printed circuit board, which is adjacent
to the
multiplexor board
. There is an IES printed circuit board in every CSX7000. These sensors
continuously monitor the environmental conditions of the platform, including the temperature,
voltages, fan rotation and fuses. The activity of the processors in each group is monitored through
the EMS processor. If a fault occurs, the condition is reported to the EMS processor.
There are three different ways to interface the EMS:
•
through the front panel LEDs
•
with SNMP
•
via BCVision
In order to interface with EMS through BCVision, you must have a valid keyboard and monitor
connection. All functions of EMS are monitored through the video/keyboard interface on the
CSX7000 primary platform. In the CSX7000 cluster, all CSX7000s must be connected through the
EMS bus (data highway). All resets and commands that are carried out on the primary platform
(through the IES and the Multiplexor) may be carried out on all other devices on the bus.
T
HE
EMS B
US
The EMS bus is an out-of-band data highway dedicated to communication between the EMS and
the IES circuitry on every CSX7000 (subsystem) in a cluster. In order to communicate with each IES
board, you must set a unique IES address on each platform. The primary platform (i.e., the platform
with the EMS processor) will always have an IES address of 1. In a cluster of platforms linked
together through the EMS bus, you can set a maximum of 31 addresses.
The EMS bus is a daisy-chained bus. Its circuitry includes pass-through circuits that allow the bus
to continue functioning in the event of a failure on any individual platform. However, if the daisy
chain is interrupted (disconnected) at a platform, all platforms beyond the break will be
disconnected.
