The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
This chapter includes the following sections:
You can install Cisco UCS Central, release 1.5 using either one of the following options:
Standalone Mode—The standalone installation enables you to install Cisco UCS Central on a virtual machine in the same way as the releases prior to release 1.3.
Cluster Mode—The cluster installation provides additional stability to the management environment. Using the cluster installation, you install Cisco UCS Central in primary and secondary nodes to enable fail over and high availability.
When you install Cisco UCS Central in cluster mode for high availability, you install Cisco UCS Central in two virtual machines. Both virtual machines should:
Be on the same sub-net
Share the same virtual IP address
Share the same NFS shared storage
Note | RDM-based shared storage for Cisco UCS Central is no longer supported with Cisco UCS Central release 1.5. |
Must run same release version of Cisco UCS Central
One of them is the primary node, and the other is the standby node. If the primary node goes down, the standby node takes over with minimal interruption. The quorum information is stored in the registered Cisco UCS domains.
When you upgrade Cisco UCS Central to release 1.5, you can upgrade to a standalone or cluster mode. Cisco UCS Central features and functionality are the same in both standalone and cluster mode.
Before upgrading Cisco UCS Central, make sure the registered domains are upgraded to the supported Cisco UCS Manager release version. Cisco UCS Central, release 1.5 requires Cisco UCS Manager, release 2.1(2) or newer. If you do not upgrade Cisco UCS Manager before upgrading Cisco UCS Central, any registered Cisco UCS domains will stop receiving updates from Cisco UCS Central after the upgrade.
Before upgrading Cisco UCS Central to 1.5 you must do the following:
Make sure you have Cisco UCS Manager 2.1(2) or newer. It is recommended to upgrade Cisco UCS Manager to the latest version to ensure complete feature support.
If you are planning to upgrade Cisco UCS Central in cluster mode with RDM-based shared storage, it will continue to work. However, we recommend that you migrate to NFS shared storage. See Changing RDM Shared Storage to NFS Shared Storage.
If you are planning to upgrade Cisco UCS Central from release 1.0, 1.1, or 1.2, you must first upgrade to Cisco UCS Central 1.3 and then upgrade to release 1.5. To upgrade Cisco UCS Central release 1.0, 1.1 or 1.2, see the appropriate installation guide at http://www.cisco.com/c/en/us/support/servers-unified-computing/ucs-central-software/products-installation-guides-list.html.
For supported upgrade options, requirements and procedures, see Upgrading Cisco UCS Central to Release 1.5.