--- title: "Overview of Nutanix on OVHcloud" description: "This page explains the elements that constitute a Nutanix cluster as delivered by OVHcloud and how it functions on the OVHcloud infrastructure." url: https://docs.us.ovhcloud.com/en/hosted-private-cloud/nutanix-on-ovhcloud/overview-nutanix-ovhcloud lang: en --- > For AI agents: the complete documentation index is available at https://docs.us.ovhcloud.com/en/llms.txt, the full documentation bundle is available at https://docs.us.ovhcloud.com/en/llms-full.txt. # Overview of Nutanix on OVHcloud This page explains the elements that constitute a Nutanix cluster as delivered by OVHcloud and how it functions on the OVHcloud infrastructure.   ### Main characteristics A Nutanix cluster consists of a stack of OVHcloud services: - [Dedicated server](https://us.ovhcloud.com/bare-metal/) - [vRack](https://us.ovhcloud.com/network/vrack/) - [Load Balancer](https://us.ovhcloud.com/public-cloud/load-balancer-kubernetes/) - [Additional IP](https://us.ovhcloud.com/network/additional-ip/) Dedicated servers (three minimum) are connected within the vRack, which is an L2 network, the host's (node) private network. Two VLANS are used, VLAN 0 for public internet and VLAN 1 for Nutanix infrastructure (Hosts, CVMs, Prism Element, and Prism Central. The public IP address of each node is not accessible since the Additional IP is dedicated to Internet access. This access is ensured by the "OVHGateway, " a dedicated VM created by OVHcloud on your cluster. The load balancer is used to expose the **Prism Central** WebUI to the public Internet. For security reasons, you can restrict the WebUI to the IP addresses of your organization.   ### Sizing Your cluster requires some features to work properly. After delivery, your cluster will have five VMs (for a three-node cluster). Each node will have a "CVM". In the cluster, you will find two more VMs: Prism Central and the OVHgateway.   ### Prism Central Prism Central is deployed in the "small" configuration. It can furthermore work in two modes: "Alone" (one VM) or "Scale" (three VM). It can manage up to 2,500 VMs in general. - `Alone mode`: 6 vCPUs, 26 GB of memory, and 500 GiB of storage. - `Scale mode` (for better resiliency and more capacity): 18 vCPUs, 78 GB of memory, and 1500 GiB of storage (combined). In case of doubt, choose the "Alone" mode. You can always switch to "Scale" mode later.   ### CVMs All CVMs require 32 GB of minimum memory and 12 vCPUs for each node. You will need to increase these values if you add new features to your cluster.   ### OVHgateway **The OVHgateway provides Internet access to the cluster via the Additional IP address.** This VM has two network cards (in the vRack), one for the private network on VLAN 1 and the other for the public Internet on VLAN 0. The VM uses NAT to route traffic from the private network to the Internet. You can therefore use it for outgoing traffic but not for incoming traffic. OVHgateway has a lightweight design, using 1 vCPU, 1 GB memory, and a 1 GiB disk.   ### Prism Central Access Once the cluster is delivered, OVHcloud provides you with an FQDN for your cluster. Access to Prism Central is available under `https://:9440`. This access is provided through the load balancer. You can also access Prism Central through OVHcloud Control Panel by: 1. Click **Hosted Private Cloud** from the top navigation bar. 2. Select **Nutanix**, then **All my clusters** from the left-hand navigation menu. 3. Under the **General Information** tab, click `Access Prism Central`. By scrolling down, you can see further information regarding support and your offer, including how to cancel your service.   ## Go further Browse all the [Nutanix guides](https://docs.us.ovhcloud.com/en/hosted-private-cloud/nutanix-on-ovhcloud/landing-page-nutanix-on-ovhcloud.md). Browse the rest of the [OVHcloud US documentation](https://docs.us.ovhcloud.com/en/index.md) for guides on our other products and services. Learn more about [Nutanix on OVHcloud](https://us.ovhcloud.com/hosted-private-cloud/nutanix/) on the OVHcloud US website.