Brocade FastIron SX Series Chassis Hardware Installation Guide - Manual (Page 111)

module and the module in slot 9 is the standby module and you want the module in 9 to be the active
module and the module in 10 to be the standby module, you can perform a manual switchover using the
switch-over-active-role command.
For information about performing this task, refer to the “Manually switching over to the standby
management module” section.
When the switchover occurs, the standby module becomes the active module.
Hitless switchover is also supported. For more information, refer to the FastIron Ethernet Switch
Administration Guide.
Removal and replacement of a management module
For information about how to remove and replace a management module, refer to Replacing a
management module on page 118.
This section explains how management module redundancy is affected when you remove and replace
an active or standby management module.
Removal and replacement of an active management module
If you remove the active management module, the standby module automatically assumes the role of
the active module. After you insert a replacement module in the slot from which the original active
module was removed, the replacement module becomes the standby module. The module boots from
the source specified for the active module. The active management module boots from the active
management module’s flash memory.
NOTE
Before removing the active management module, Brocade recommends that you first issue the
command switch-over-active-role. For details, refer to the “Manually switching over to the standby
management module”section.
After the replacement module boots, the active module compares the standby module’s flash code and
system-config file to its own. If differences exist, the active module synchronizes the standby module’s
flash code and system-config file with its own.
Removal and replacement of a standby management module
You can remove a standby management module without causing a switchover to occur. The active
module continues to function as is. Communication between the active module and the removed
module stops until the new module is installed in the chassis. After the new module is installed, it
assumes the role of standby module. The module boots from the source specified for the active module.
The active management modules boot from the active management module’s flash memory.
After the module boots, the active module compares the standby module’s flash code and system-
config file to its own. If differences exist, the active module synchronizes the standby module’s flash
code and system-config file with its own.
Switchover implications
After the role of the active management module switches from one module to another, you must be
aware of implications that affect the following areas:
Removal and replacement of a management module
Brocade FastIron SX Series Chassis Hardware Installation Guide 109
53-1003092-01