Chassis Management Module (CMM)

Problem Blue LED on the CMM

Cause CMM is not properly assembled

Resolution Re-seat the CMM

Validation Verify the Blue LED on the CMM turned off

Problem Power Supplies are not monitored

Cause Chassis type is not configured properly in the CMM

Resolution:

1. Login via serial console to the CMM and repeat the CMM installation process (install.sh).
2. Select correct Chassis type:
   • Telkor - 3 PSUs per 1U
   • Lambda - 5 PSUs per 1U
3. In case of dual CMM, perform it on each CMM individually.

Validation Run asg stat -v and check the power supplies amount

Problem Failed to install 2nd Chassis in dual Chassis setup

Cause Chassis ID is identical on both Chassis

Resolution

1. Login via serial console to the CMM
2. Set the Chassis ID by editing the SHMM_CHASSID in /etc/shmm.cfg
3. Reboot the CMM

Validation Check whether the installation on the 2nd Chassis works

Problem CMM firmware is different after CMM failover

Cause CMM firmware mismatch in a dual CMM

Resolution Upgrade the faulty CMM individually and reseat the other CMM

Validation Verify version by invoking asg_version

Problem No connectivity to the CMM through one of the CIN interfaces

Cause CMM interface is set to the front panel instead of the backplane

Resolution:

1. Remove CMM
2. Change JP4 jumpers' position to 2-3
3. Plug in the CMM

Validation Run asg stat -v and check the CMM amount

Problem Alarm LED is on

Cause High temperature in Chassis surroundings

Resolution:

1. Login via serial console to the CMM and reset LED by running: clia alarm 0
2. Make sure that all open slots (missing SGMs/CMMs/PSUs) are covered with blanks
3. Make sure that all fans are properly attached
4. Make sure there is proper cooling in Chassis surroundings

Validation Alarm LED should remain off