User's Manual

46 Installing and Setting Up the CMC
NOTE: During updates of CMC firmware, some or all of the fan units in the chassis
will spin at 100%. This is normal.
NOTE: The firmware update, by default, retains the current CMC settings. During
the update process, you have the option to reset the CMC configuration settings
back to the factory default settings.
NOTE: If you have redundant CMCs installed in the chassis, it is important to
update both to the same firmware version. If the CMCs have different firmware and
a failover occurs, unexpected results may occur.
You can use the RACADM getsysinfo command (see the getsysinfo
command section in the Dell Chassis Management Controller Administrator
Reference Guide) or the Chassis Summary page (see "Viewing the Current
Firmware Versions") to view the current firmware versions for the CMCs
installed in your chassis.
If you have a standby CMC, it is recommended that you update both CMCs
at the same time with a single operation. When the standby CMC has been
updated, swap the CMCs’ roles so that the newly updated CMC becomes the
primary CMC and the CMC with the older firmware becomes the standby.
(See the cmcchangeover command section in the Dell Chassis Management
Controller Firmware Administrator Reference Guide for help swapping roles.)
This allows you to verify that the update succeeded and that the new
firmware is working properly before you update the firmware in the second
CMC. When both CMCs are updated, you can use the cmcchangeover
command to restore the CMCs to their previous roles.
Updating CMC Firmware Using the Web Interface
For instructions on using the Web interface to update CMC firmware, see
"Updating the CMC Firmware."
Updating the CMC Firmware Using RACADM
For instructions on using the RACADM fwupdate subcommand to update
CMC firmware, see the fwupdate command section in the Dell Chassis
Management Controller Administrator Reference Guide.