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 Command Line Reference Guide for iDRAC6 and
CMC) or the Chassis Summary page (see "Viewing the Current Firmware
Versions" on page 189) 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 Command Line Reference
Guide for iDRAC6 and CMC 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 190.
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 Command Line
Reference Guide for iDRAC6 and CMC.