VMware Aria Operations 8.17.1

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Activate Continuous Availability in
VMware Aria Operations

You can activate continuous availability (CA) for
VMware Aria Operations
 to protect your data if there is one or more node failures.
  • Create and configure the primary node.
  • Create and configure the witness node.
    VMware Aria Operations
     can have only one witness node in its cluster. While deploying an OVA file, you can select the recommended CPU/RAM configuration for the witness node. For sizing information, see KB Article 2093783.
  • Create and configure one data node with a static IP address.
  • Note the fully qualified domain name (FQDN) or IP address of the primary node.
CA can be activated only on a standard cluster. If the cluster is running, activating CA restarts the cluster.
You can activate CA in the
VMware Aria Operations
 cluster at the installation time or after
VMware Aria Operations
 is up and running. Adding CA at installation is less intrusive because the cluster has not yet started. For more information, see the "Continuous Availability Considerations" and "Continuous Availability FAQ" topics in the
Reference Architecture
 guide and the "Continuous Availability (CA)" topic in the
VMware Aria Operations Best Practices
 guide.
  1. In a Web browser, navigate to the primary node administration interface.
    https://
    primary-node-name-or-ip-address
    /admin
  2. Enter the
    VMware Aria Operations
     administrator user name of
    admin
    .
  3. Enter the
    VMware Aria Operations
     administrator password and click
    Log In
    .
  4. Under Continuous Availability, click
    Activate CA
    .
    The Continuous Availability wizard opens. The Witness node exists outside the fault domains. The primary node is already assigned to
    Fault Domain 1
    .
    You can enter names for each Fault Domain during installation. You can also edit the fault domain names after activating continous availability.
  5. To create a pair with the primary node, drag the data nodes to
    Fault Domain 2
    .
    You can add a maximum of 16 data nodes including the primary node and divide them between the fault domains to create eight pairs.
  6. Click
    Ok
    .
  • To deactivate continuous availability, click
    Deactivate CA
     and follow the steps in the admin UI. The deativation timeline depends on the cluster size and the data retention period. Please wait for the deactivation to complete.

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