Systems

For the management of a system (a chassis with more than one type of module running), the acSystem/acSystemChassis subtree in the acSystem MIB should be used:

The first few objects are scalars that are read-only objects for the dry-contacts’ state.
acSysModuleTable: A table containing mostly status information that describes the modules in the system. In addition, the table can be used to restart an entire system, restart a redundant module or perform switchover when for devices supporting HA.
acSysFanTrayTable: A status-only table with the fan tray’s state. Objects in the table indicate the specific state of the individual fans within the fan tray.
acSysPowerSupplyTable: A status-only table with the states of the two power supplies.

The above tables are complemented by the following alarm traps (as defined in the acBoard MIB). For more details, see Getting Started with SNMP.

acFanTrayAlarm: Fault in the fan tray or fan tray missing (see Fan Tray Alarm).
acPowerSupplyAlarm: Fault in one of the power supply modules or power supply module is missing (see Power Supply Alarm).