Chassis Management Module (CMM)
Managing CMM Modules
OmniSwitch 7700/7800 Hardware Users Guide
April 2005
page 4-13
Managing CMM Modules
Refer to the “Managing CMM Directory Content” chapter in the
Switch Management Guide
for detailed
information on managing CMM modules.
Reloading a CMM Module
You can reload either the primary or secondary CMM module using the CLI’s
command. For
information on using this command, refer to the “Managing CMM Directory Content” chapter in the
Switch Management Guide
. A CMM reload is essentially a soft boot of the module. Note that you can
reload only one CMM module at a time; the primary and secondary CMMs cannot be reloaded simulta-
neously.
Reloading the Primary CMM
If the primary CMM is reloaded, the secondary CMM automatically takes over primary management func-
tions. In other words, the secondary CMM becomes the primary CMM as soon as the reload is initiated.
The reloaded CMM then assumes the secondary—or
redundant
—role when the reload sequence is
complete.
Reloading the Secondary CMM
If the secondary CMM is reloaded, only the secondary CMM is affected. The primary CMM continues all
operations without interruption.
Switching the Primary and Secondary Roles
The primary and secondary CMM modules can trade roles. In other words, the CMM that is currently
functioning as the secondary CMM can be assigned to “take over” the role of the primary CMM. The
primary CMM then assumes the secondary role. Because this action is coordinated between the two CMM
modules, switch management functions are maintained during the takeover.
To manually designate the secondary CMM to assume the primary role, enter the
command at
the CLI prompt. For example:
-> takeover
The PRI and SEC LEDs on the CMM’s front panel display the CMM’s current role (i.e., primary or
secondary). Refer to
for more information. You can also use the
command to display whether the CMM you are currently logged in to is primary or secondary. For
example:
Current running CMM
: PRIMARY,
Current running configuration : WORKING
Certify/Restore Status
: CERTIFIED,
Synchronization Status
: SYNCHRONIZED
