Dell PowerEdge M1000e Chassis Management Controller Firmware Version 5.1 User’s Guide

You can update CMC firmware using Web interface or RACADM. The firmware update, by default, retains the current CMC settings. During the update process, you can reset CMC configuration settings back to the factory default settings.

If a Web user interface session is used to update system component firmware, the Idle Timeout setting must be set high enough to accommodate the file transfer time. In some cases, the firmware file transfer time may be as high as 30 minutes. To set the Idle Timeout value, see Configuring Services.

During updates of CMC firmware, it is normal for some or all of the fan units in the chassis to spin at 100%.

If you have redundant CMCs installed in the chassis, it is recommended to update both the CMCs to the same firmware version at the same time with a single operation. If CMCs have different firmware and a failover occurs, unexpected results may occur.

The Active CMC resets and becomes temporarily unavailable after the firmware has been uploaded successfully. If a standby CMC is present, the standby and active roles swap. The standby CMC becomes the active CMC. If an update is applied only to the active CMC, after the reset is complete, the active CMC does not run the updated image, only the standby CMC has that image. In general, it is highly recommended to maintain identical firmware versions for the active and standby CMCs.

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 Chassis Management Controller for Dell PowerEdge M1000e RACADM Command Line Reference Guide .

information about 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.

To avoid disconnecting other users during a reset, notify authorized users who may log in to CMC and check for active sessions in the Sessions page. To open the Sessions page, select Chassis in the tree, click the Network tab, and then click the Sessions subtab.

When transferring files to and from CMC, the file transfer icon spins during the transfer. If your icon is animated, make sure that your browser is configured to allow animations. For instructions, see Allow Animations in Internet Explorer .

If you experience problems downloading files from CMC using Internet Explorer, enable the Do not save encrypted pages to disk option. For instructions, see Downloading Files From CMC With Internet Explorer .