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CMM Files Managing CMM Directory Content
page 4-10 OmniSwitch 6600 Family Switch Management Guide March 2005
Generally speaking, the switch assigned the lowest stack number is the primary CMM switch, the switch
with the next lowest stack number is the secondary CMM switch, and all other switches are idle. For more
information on stack numbering, see the OmniSwitch 6600 Family Hardware Users Guide.
Scenario 2: Rebooting from the Working Directory
Since changes to the boot.cfg file and new .img files are initially saved to the working directory, some-
times it will be necessary to boot from the working directory to check the validity of the new files. The
following diagram illustrates the synchronization process of a working directory reboot. The stack
displayed is a three switch stack.
Booting from the Working Directory
This synchronization process occurs automatically on a working directory reboot.
Note. It is important to certify the working directory and synchronize the stack as soon as the validity of
the software is established. Stacks booted from the working directory or unsynchronized stacks are at risk
of mismanaging data traffic due to incompatibilities in different versions of switch software. Certifying the
working directory is described in “Copying the Working Directory to the Certified Directory” on
page 4-20, while synchronizing the switch is described in “Synchronizing the Primary and Secondary
CMMs” on page 4-26.
WC
WC
WC
1. Stack is booted
up from the work-
ing directory.
2. The primary
CMM switch cop-
ies its working
directory to the
secondary CMM
switch working
directory.
3. The primary
CMM switch cop-
ies its working
directory to the
other switch work-
ing directories.
Switch #1 Switch #2 Switch #3