Introduction to Cluster:
A cluster is a group of devices that work together as a single system to improve performance, reliability, or scalability, often used for load balancing, high availability, or high-performance computing.
The Ray Cluster means a logical group of Ray Appliances. It could be used to create:
1. Site 2. building on campus 3. Floor in a building 4. room in building 5. logical separation of AP in the same location.
The elements displayed at the top left of the screen are:
- Name of the Cluster
- Cluster ID of the Cluster
To view the clusters, click the Overflow Menu at the top left. 
You can update cluster details, such as the cluster name, location, tags, etc., by clicking Update Cluster, as shown in the figure.
You may update the cluster details as below:
- Add Cluster Name, Select Type of your Time zone.
- You can also Add (Optional) Address, Contact Number, Location Tag, Lattitude, Longitude.
You can search for the location using the search bar or input the latitude and longitude directly.
You can also update the time zone. Press Update once you're done.
Child Clusters:
Ray is a multi-tenant, multi-level controller system that allows for the creation of hierarchical clusters.
A Child cluster is a subset of nodes created within a larger cluster by dividing it into smaller clusters. These child clusters inherit configurations and settings from their parent cluster and can be further subdivided into "sub-child" clusters. Child clusters help distribute workloads or isolate specific tasks while remaining part of the larger infrastructure. When creating a child cluster, you can specify details such as the Cluster Name, location, tags, etc.
At each cluster level, you may manage the following independently:
Devices (e.g., Access Points, Edge devices, Switches)
Profiles and configuration settings
Users
Access control and inheritance work as intended, where the top-level cluster has visibility and access to the details of its child clusters. Ray's cluster system makes it easier to set up and manage complex and large-scale network deployments.
To create a New Child Cluster, follow these steps:
- Go to the Parent cluster (Cluster Name) where you wish to add the new child cluster.
- Click on the three vertical dots in the top right corner, as shown.
Select Create New.
Fill in the required details for the child cluster.
- Add Cluster Name, Select Type of your Time zone.
- You can also Add (Optional) Address, Contact Number, Location Tag, Lattitude, Longitude.
- Select the appliance to be added to the new child cluster.
If necessary, you can move the appliance to the cluster by selecting it. Then, press Move.
