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Using FlexAddress and FlexAdress Plus
Cards
This section provides information about FlexAddress, FlexAddress Plus Cards, and configuring and using
these the cards.
NOTE: An Enterprise License must be installed on the CMC to use the Flexaddress feature.
About FlexAddress
If a server is replaced, the FlexAddress for the slot remains the same for the given server slot. If the server
is inserted in a new slot or chassis, the server-assigned WWN/MAC is used unless that chassis has the
FlexAddress feature enabled for the new slot. If you remove the server, it reverts to the server-assigned
address. You need not reconfigure deployment frameworks, DHCP servers, and routers for various fabrics
for identifying the new server.
Every server module is assigned unique WWN and/or MAC addresses as part of the manufacturing
process. Without FlexAddress, if a server had to be replaced with another server module, the WWN/MAC
addresses changes and Ethernet network management tools and SAN resources had to be reconfigured
to identify the new server module.
FlexAddress allows CMC to assign WWN/MAC addresses to a particular slot and override the factory
addresses. Hence, if the server module is replaced, the slotbased WWN/MACaddresses remain the same.
This feature eliminates the need to reconfigure Ethernet network management tools and SAN resources
for a new server module.
Also, the override action occurs only when a server module is inserted in a FlexAddress enabled chassis;
no permanent changes are made to the server module. If a server module is moved to a chassis that does
not support FlexAddress, the factory-assigned WWN/MAC addresses are used.
CMC VRTX chassis is shipped with the SD card, which supports FlexAddress, FlexAddress Plus, and
Extended Storage features. If the VRTX chassis is shipped with an optional second CMC, the second CMC
has an SD card that supports only Extended Storage.
NOTE:
• Data contained on the SD card is encrypted and may not be duplicated or altered in any manner,
because it may inhibit system function and cause the system to not function properly.
• The use of an SD card is limited to one chassis only. You cannot use the same SD card on
another chassis.
The FlexAddress feature card contains a range of MAC addresses. Before installing FlexAddress, you can
determine the range of MAC addresses contained on a FlexAddress feature card by inserting the SD card
into a USB Memory Card Reader and viewing the pwwn_mac.xml file. This clear text XML file on the SD
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