Filter
Top Products
• Default domain name
Setup Mode
You can choose to either restore the system configuration from an existing backup file, or manually set up
the system by going through the Setup wizard. If you choose to restore the system, the backup file must be
reachable from the management network.
System Configuration Type
You can configure a Cisco UCS domain to use a single fabric interconnect in a standalone configuration or
to use a redundant pair of fabric interconnects in a cluster configuration.
A cluster configuration provides high availability. If one fabric interconnect becomes unavailable, the other
takes over. Only one management port (Mgmt0) connection is required to support a cluster configuration;
however, both Mgmt0 ports should be connected to provide link-level redundancy.
In addition, a cluster configuration actively enhances failover recovery time for redundant virtual interface
(VIF) connections. When an adapter has an active VIF connection to one fabric interconnect and a standby
VIF connection to the second, the learned MAC addresses of the active VIF are replicated but not installed
on the second fabric interconnect. If the active VIF fails, the second fabric interconnect installs the replicated
MAC addresses and broadcasts them to the network through gratuitous ARP messages, shortening the
switchover time.
The cluster configuration provides redundancy only for the management plane. Data redundancy is
dependent on the user configuration and may require a third-party tool to support data redundancy.
Note
To use the cluster configuration, the two fabric interconnects must be directly connected together using Ethernet
cables between the L1 (L1-to-L1) and L2 (L2-to-L2) high availability ports, with no other fabric interconnects
in between. This allows the two fabric interconnects to continuously monitor the status of each other and
quickly know when one has failed.
Both fabric interconnects in a cluster configuration must go through the initial setup process. The first fabric
interconnect to be set up must be enabled for a cluster configuration. Then, when the second fabric interconnect
is set up, it detects the first fabric interconnect as a peer fabric interconnect in the cluster.
For more information, refer to the Cisco UCS 6100 Series Fabric Interconnect Hardware Installation Guide.
Management Port IP Address
In a standalone configuration, you must specify only one IP address and the subnet mask for the single
management port on the fabric interconnect.
In a cluster configuration, you must specify the following three IP addresses in the same subnet:
• Management port IP address for fabric interconnect A
• Management port IP address for fabric interconnect B
• Cluster IP address
Cisco UCS Manager GUI Configuration Guide, Release 2.0
66 OL-25712-04
Initial System Setup