Owner's Manual

– RACADM: Use the getsel, getraclog, or gettracelog commands.

3. If the problem persists, reset CMC to factory default settings.

NOTE: This command completely erases CMC configuration. Take a backup of the chassis configuration

before resetting to factory default settings. You can use this to restore the chassis configuration settings. To

reset chassis configuration, run the

racadm racresetcfg command.

NOTE: Make sure CMC has the latest revision firmware. To check the CMC version, from Telnet/SSH use the

racadm getversion command or on the CMC Web interface, go to Chassis Overview → Update. To get the latest

CMC firmware visit the Dell Support site at Support → Drivers & Downloads → Enterprise IT → Servers, Storage &

Networking → Poweredge → Poweredge M1000E → Chassis System Management → Dell firmware .

CMC Shows Redundancy Lost

1. A firmware or software incompatibility is detected between CMC1 and CMC2. If CMC1 and CMC2 have different

firmware versions and redundancy is lost. Both CMCs should have same Firmware in order to have redundancy. To

view the CMC firmware version:

– Using CMC Web interface: Go to Chassis Overview → Update.

– Using RACADM: Run the getversion command.

To download the latest CMC firmware image, go to Dell support site at Support → Drivers & Downloads →

Enterprise IT → Servers, Storage & Networking → Poweredge → Poweredge M1000E → Chassis System

Management → Dell firmware .

2. If the problem persists, make sure that the network cables are connected properly to the standby CMC. Using a

laptop, verify that you are able to access the IP address through that cable.

3. If the standby CMC is removed, CMC shows that redundancy is lost. Make sure that the standby CMC card is

seated properly. Press the latch to unlock the module and pull the CMC module out. Reinsert the CMC module

properly and lock the CMC module by closing the latch. The blue LED is enabled on the active CMC. In a redundant

two-CMC configuration, only the top green LED is enabled on the standby CMC.

4. Perform one of the following:

– If you are able to access or ping the CMC IP address, log in to CMC though the Web interface or RACADM

(Telnet/SSH, Remote, or Serial RACADM) interface.

– If you log in to CMC through the Web interface, go to Chassis Overview → Troubleshooting → Reset

components and click Reset/failover CMC.

– If you log in to CMC through RACADM (Telnet/SSH/Serial), run the racadm cmcchangeover command. This

command is applicable only if the M1000e chassis has two CMCs, one active and the other standby. If there

is only one CMC in the M1000e chassis, run the racadm racreset command.

– If you log in using remote RACADM and if the chassis has two CMCs (one active and the other standby),

run the following command:

racadm -r<CMC IP address>-u<username>-p<password>cmcchangeover

If there is only one CMC in the chassis, run the following command:

racadm -r<CMC IP address>-u<username>-p<password>racreset

It takes around five minutes for the CMC to reboot. After CMC is rebooted, log in to the CMC using CMC

Web interface or RACADM and verify the redundancy mode:

* CMC Web Interface: Go to Chassis Overview → Health. On the Graphic, place the cursor on CMCs.

It must display the mode as Redundant.

* RACADM: Use the getredundancymode command. Output is displayed as Redundant.