In this section:
The Hardware Monitor is supported for the following systems:
The above systems hardware status may be viewed using the Hardware Monitor (HWMON) Application provided through the Web UI. This application processes all hardware alarms, sends relevant SNMP traps, and displays on-demand sensor information.
The HWMON Application runs on the Management CPUs in slots 2 and 13 (for the DSC 8000) and on the Management and Routing CPUs in slots 14 and 24 (for the SP2000). Each instance of HWMON runs independently and either instance may be used to query the hardware status. Select Hardware Monitor from the Applications bar and then select the required HWMON instance.
On the main page of each HWMON instance, the following information is provided:
When the HWMON starts up, its status is set to Initializing until all of the components available in the system have been discovered. Once all the components have been discovered, the status is set to Running. It is important to wait for the HWMON instance to transition to Running before depending on the information provided because the information may still be changing.
Normally HWMON logs errors and unexpected events, but a more verbose logging of activity may be enabled by changing the Debug Logging state to ENABLED, see To enable Debug Logging. When the Debug Logging is enabled, additional HWMON logs are written to /var/log/ptidbglog.
The Telco Alarm states and how to reset them are described in AMC671 MCH and RTM670 μRTM Alarms and Alarm LEDs. A button is included to reset the alarms.
Each HWMON instance provides information organized by slot. A slot may contain an MCH, CPU, or I/O card. To see the information for a slot, select the slot number from the HWMON Application main page. Each slot provides information, see the following list of examples:
The Board Manufacturing information may be useful in the event of a failure that requires a card to be returned to Ribbon for repair.
All components – slots, power supplies, and fans – have a Module Management Controller (MMC) that controls hot-swap activity, access to manufacturing information [also called Field Replaceable Unit (FRU) Information] and sensor data. The revision of the firmware running in the MMC is provided for each component that includes an MMC.
Each system card also includes the boot code firmware to support the loading of the application software on the card at boot. The revision of the bootloader firmware (BIOS) running in the slot is provided for each component that includes a bootloader.
Each component includes sensors that provide information such as power state, hot-swap status, temperatures, voltages, currents, fan speeds, and so on. Any sensor value may be read through the Web UI, see To view Hardware Monitor information.
The MCH slots provide this information for the MCH slot themselves, and also provide this information for the power supplies, fans, and shelf where the MCH resides. To view information on one of these system components, select an object under Power Supply, Fan Tray or Shelf to inspect the manufacturing information, sensors, or firmware versions for that component. The information for the Power Supply, Fan Tray, and Shelf is identical for both MCH slots within the chassis where these components reside.
The Power Supplies and Fan Trays have an MMC, but neither has boot code since they do not have a CPU that runs application software.
The Shelf component only includes FRU information. There is no MMC or boot code or sensors
The information provided by the HWMON application is also exposed through SNMP and the REST API. For more information about these user interfaces, refer to Configuring SNMP and DSC REST API.
If you disconnect the inter-chassis cables or power off an expansion shelf, the DSC cannot query any sensor information for the shelf. Trying to read any sensor information from a slot in the disconnected chassis produces a Read Error.
Any information displayed for that shelf on the Web UI was cached prior to the chassis being disconnected. Updated information can only be displayed after the cables are reconnected or the expansion shelf is powered on.
For the Debug Logging drop-down menu, select ENABLED.
The Restore Debug Defaults action restores the Hardware Monitor logging configurations to their default values and clears the associated logging alarms.