Owner's Manual

54 Installing and Setting Up CMC
NOTE: If you have redundant CMCs installed in the chassis, it is important to
update both to the same firmware version. If 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 RACADM Command Line Reference Guide for
iDRAC7 and CMC) or the Chassis Summary page (see "Viewing the Current
Firmware Versions" on page 207) to view the current firmware versions for
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 CMC with the older firmware becomes the standby. (See
the cmcchangeover command section in the RACADM Command Line
Reference Guide for iDRAC7 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 208.
Updating CMC Firmware Using RACADM
For instructions on using the RACADM fwupdate subcommand to update
CMC firmware, see the fwupdate command section in the RACADM
Command Line Reference Guide for iDRAC6 and CMC.