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This chapter includes the following sections:
Cisco UCS Central provides centralized management capabilities to multiple Cisco UCS domains across one or more data centers. Cisco UCS Central works with Cisco UCS Manager to provide a scalable management solution for a growing Cisco UCS environment. Cisco UCS Central does not replace Cisco UCS Manager, which is the basic engine for managing a Cisco UCS domain. Instead, it builds on the capabilities provided by Cisco UCS Manager and works with Cisco UCS Manager to effect changes in individual domains.
Cisco UCS Central does not reduce or change any local management capabilities of Cisco UCS Manager, such as its API. This allows you to continue using Cisco UCS Manager the same way you did before Cisco UCS Central. This also allows all existing third party integrations to continue to operate without change.
To manage Cisco UCS Manager through Cisco UCS Central, you must register the Cisco UCS domains in Cisco UCS Central. You can register a Cisco UCS domain as a part of a domain group or as an ungrouped domain. When you have domain group, all registered domains in the domain group can share common policies and other configurations.
You can use a Fully Qualified Domain Name (FQDN) or IP address to register Cisco UCS domains in Cisco UCS Central.
Note | During the initial registration process with Cisco UCS Central, all the active Cisco UCS Manager GUI sessions will be terminated. |
Before registering a domain in Cisco UCS Central, do the following:
Configure an NTP server and the correct time zone in both Cisco UCS Manager and Cisco UCS Central to ensure that they are in sync. If the time and date in the Cisco UCS domain and Cisco UCS Central are out of sync, the registration might fail.
Obtain the hostname or IP address of Cisco UCS Central. For standalone mode, use individual VM IP address. If you plan to setup in cluster mode, use virtual IP address.
Note | We recommend that you always register Cisco UCS domains using a Fully Qualified Domain Name. |
Obtain the shared secret that you configured when you deployed Cisco UCS Central.
Warning | You should upgrade the Cisco UCS Manager to Release 2.1(2) before registering with Cisco UCS Central. If you try to register Cisco UCS Manager, Release 2.1(1) with Cisco UCS Central Release 1.1, Cisco UCS Manager will display the registration as positive. But Cisco UCS Central inventory will not display the registered Cisco UCS Domain. Cisco UCS Central faults will display a critical fault on the registration failure. |
The following example registers a Cisco UCS Domain with a Cisco UCS Central system at IP address 209.165.200.233, and commits the transaction:
UCS-A# scope system UCS-A /system # create control-ep policy 209.165.200.233 Shared Secret for Registration: S3cretW0rd! UCS-A /system/control-ep* # commit-buffer UCS-A /system/control-ep #
Caution | If you want to unregister any registered Cisco UCS Domain in a production system, contact Cisco Technical Support. |
When you unregister a Cisco UCS Domain from Cisco UCS Central,
You can no longer manage the service profiles, policies and other configuration for the Cisco UCS Domain from Cisco UCS Central.
All global service profiles and policies become local and continues to operate as local entities. When you re-register the domain, the service profiles and polices still remain local.
Caution | If you want to unregister any registered Cisco UCS Domain in a production system, contact Cisco Technical Support. |
When you unregister a Cisco UCS Domain from Cisco UCS Central,
You can no longer manage the service profiles, policies and other configuration for the Cisco UCS Domain from Cisco UCS Central.
All global service profiles and policies become local and continues to operate as local entities. When you re-register the domain, the service profiles and polices still remain local.
Command or Action | Purpose |
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The following example unregisters a Cisco UCS Domain from Cisco UCS Central and commits the transaction:
UCS-A# scope system UCS-A /system # delete control-ep policy UCS-A /system* # commit-buffer UCS-A /system #