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you do not have to manually configure the MAC addresses to be used by the server associated with the service
profile.
In a system that implements multi-tenancy, you can use the organizational hierarchy to ensure that MAC pools
can only be used by specific applications or business services. Cisco UCS Manager uses the name resolution
policy to assign MAC addresses from the pool.
To assign a MAC address to a server, you must include the MAC pool in a vNIC policy. The vNIC policy is
then included in the service profile assigned to that server.
You can specify your own MAC addresses or use a group of MAC addresses provided by Cisco.
UUID Suffix Pools
A UUID suffix pool is a collection of SMBIOS UUIDs that are available to be assigned to servers. The first
number of digits that constitute the prefix of the UUID are fixed. The remaining digits, the UUID suffix, are
variable. A UUID suffix pool ensures that these variable values are unique for each server associated with a
service profile which uses that particular pool to avoid conflicts.
If you use UUID suffix pools in service profiles, you do not have to manually configure the UUID of the
server associated with the service profile.
WWN Pools
A WWN pool is a collection of WWNs for use by the Fibre Channel vHBAs in a Cisco UCS domain. You
create separate pools for the following:
• WW node names assigned to the server
• WW port names assigned to the vHBA
A WWN pool can include only WWNNs or WWPNs in the ranges from 20:00:00:00:00:00:00:00 to
20:FF:FF:FF:FF:FF:FF:FF or from 50:00:00:00:00:00:00:00 to 5F:FF:FF:FF:FF:FF:FF:FF. All other
WWN ranges are reserved. To ensure the uniqueness of the Cisco UCS WWNNs and WWPNs in the SAN
fabric, we recommend that you use the following WWN prefix for all blocks in a pool:
20:00:00:25:B5:XX:XX:XX
Important
If you use WWN pools in service profiles, you do not have to manually configure the WWNs that will be
used by the server associated with the service profile. In a system that implements multi-tenancy, you can use
a WWN pool to control the WWNs used by each organization.
You assign WWNs to pools in blocks. For each block or individual WWN, you can assign a boot target.
WWNN Pools
A WWNN pool is a WWN pool that contains only WW node names. If you include a pool of WWNNs in a
service profile, the associated server is assigned a WWNN from that pool.
WWPN Pools
A WWPN pool is a WWN pool that contains only WW port names. If you include a pool of WWPNs in a
service profile, the port on each vHBA of the associated server is assigned a WWPN from that pool.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
32 OL-25712-04
Server Architecture and Connectivity