Brocade Multi-Service IronWare Switching Configuration Guide (Supporting R05.6.00) - Manual (Page 84)

54 Multi-Service IronWare Switching Configuration Guide
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Managing management module redundancy
3
• secondary, which contains the secondary Multi-Service IronWare image for the
management module
A Brocade Multi-Service IronWare image contains layer 1 – 3 software used by the
management module.
During startup or switchover, the flash code on the active module is compared to the flash
code on the standby module. If the files differ, the files on the standby module are
synchronized to the files on the active module. If you update the flash code on the active
module, the flash code on the standby module is automatically synchronized (without
comparison) to the new file on the active module.
• System-config file – The flash code includes the system-config file. During startup or
switchover, the system-config file on the active module is compared to the system-config file on
the standby module. If the files are different, the system-config file on the standby module is
synchronized with that of the active module. When you save changes to the system-config file
on the active module, the system-config file on the standby module is automatically (without
comparison) synchronized to match the system-config file on the active module.
• Running-config – The running-config file resides in the Brocade system memory, and is
automatically synchronized (without comparison) between the active and the standby module
at regular intervals. The default interval is 7 seconds.
• Boot code – Each active and standby management module also includes boot code that is run
when a module boots. The boot code resides in the boot flash of each module. Boot code is
synchronized between the active and standby modules, which allows the system to use an
older version of boot code on the standby module if desired.
NOTE
However, when the standby module is inserted to the standby slot, the images get synchronized to
the standby image.
Figure 1 shows how the files are synchronized between the active module and the standby module.