Home | Introduction | Web Interface | TFT Display | Appendix | Glossary

Status -> slot 28 10G-FAN

Clicking on slot 28 10G-FAN from the Status menu will display the following information for the two fans.

The webpage for the 10G-FAN is subdivided into categories: general information, uc, and 10G-FAN. Each section/category contains a variety of counters and state bits related to the operation or health of the fan monitor. As a general rule, a non-zero value for a state bit or counter should be investigated as it may indicate an abnormality in the functioning of the hardware.

By default, this web page displays the information in a condensed format, and you must click on the individual components (e.g., voltage, temperature) in order to view the details for each. If you prefer to view the verbose output, click on all in the top righthand corner of the web page. To return to the condensed format for the output, you will need to go back to a previous web page, and then return to this web page.

Click on the name of the counter/state bit below, and the hyperlink will forward to the glossary for its definition and a list of possible causes for the non-zero value.

The general information section of the webpage includes:

• lost communication

• lost communication count

• serial number -- the serial number for the fan monitor.

• engineering date code -- internal Myricom manufacturing information.

• firmware version -- internal Myricom use.

• monitor version -- internal Myricom use.

• changes

The uc section provides information pertaining to the health of the microcontroller on the fan monitor.

• state -- the operational state for the fan monitor.

• resets

• firmware faults

• overtemps

• scratchpad

• reboot: <n>

  This clickable variable hyperlinks to a webpage to reboot the microcontroller on the fan monitor, or the microcontrollers on all of the switch line cards.

  

  Checking the reboot box and clicking on Apply on this webpage will set this <n> state bit value to 1 and trigger the rebooting of the selected microcontroller(s).

The 10G-FAN section provides information on the fans.

• fan 0 and fan 1

  Clicking on fan 0, for example, will reveal counter and state bit information for this fan.

  

  • speed

    The fan speed is reported in revolutions per minute (RPM).

  • minimum speed

    The minimum speed is 2000 RPMs. If the speed falls below the minimum speed, the bad state bit will be triggered.

  • bad

  • bad count

  • tray missing

  • tray missing count

  • mode

    The operational mode for the fan is as follows:

    mode - 0 if temperature is cool (slow fans)
           1 if temperature is hot  (fast fans)
    

    If the temperature of the 10G-CLOS-ENCL switch reaches 40 degrees Celsius, the fan card will automatically increase the speed of all fans to fast, 3600 RPMs. When the temperature cools to at least 35 degrees Celsius, the speed of the fans will decrease to slow, 2000 RPMs. The administrator can also change the fan speed himself using the control setting below.

  • voltage

    Voltage on the fan.

  • control: <n>

    This clickable variable hyperlinks to a webpage to adjust the speed (slow, fast) of the fans.

    

    Checking the run fast box and then Apply will set this <n> state bit value to 1 and increase the speed for this fan, this slot's fans, or all fans. A value of 0 for this state bit indicates normal operation (slow).

Last updated: 23 March 2007