User's Manual

50 Installing and Setting Up the CMC

NOTE: During updates of CMC firmware, it is normal for some or all of the fan units

in the chassis to spin at 100%.

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" on page 186) 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

active 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 in swapping

roles.) This allows you to verify that the update has 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. CMC

Firmware revision 2.x updates both the primary CMC and the redundant

CMC without using the cmcchangeover command.

Updating CMC Firmware Using the Web Interface

For instructions on using the Web interface to update CMC firmware, see

"Updating the CMC Firmware" on page 187.

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.