---
title: "Nutanix - How to replace a disk"
description: "Learn what actions to take before and after a Nutanix disk replacement."
url: https://docs.us.ovhcloud.com/en/hosted-private-cloud/nutanix-on-ovhcloud/replace-disk
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.

# Nutanix - How to replace a disk

**Learn what actions to take before and after a Nutanix disk replacement.**

 

## Requirements

- A [Nutanix](https://us.ovhcloud.com/hosted-private-cloud/nutanix/) cluster in your OVHcloud account
- Access to the [OVHcloud Control Panel](https://manager.us.ovhcloud.com/)

 

## Instructions

### Step 1: Access Prism Central and Prism Element

From the [OVHcloud Control Panel](https://manager.us.ovhcloud.com/), navigate to the `Nutanix` section via the `Hosted Private Cloud` menu and select your cluster.

In the **General information** panel, click `Access Prism Central`.

Click `Launch Prism Element`, which will open the single-cluster user interface.

From the Prism Element interface, select `Menu` and choose `Hardware`.

 

### Step 2: Put the host into maintenance mode

Click `Table`, and then `Host`.

Click your host and select `Enter Maintenance Mode`.

In the dialog box, check `☑️` _Power-off non-migratable VMs_ to shut down any VMs that cannot migrate, and then click `Enter Maintenance Mode`.

**Note:**

Wait until the spinning icon changes to show the host is in Maintenance Mode.

 

### Step 3: Remove the disk

Select `Disk`, click the failing disk, and then `Remove Disk`.

Confirm the action in the pop-up window by clicking `Remove Drive`.

**Note:**

Prism will evacuate data from the disk and mark it as removed.

 

### Step 4: Data center (DC) intervention

Once the disk is removed in Prism, an intervention will be created to replace the disk. The node will boot into Rescue Mode.

 

### Step 5: Physical disk removal and replacement (by DC technician)

A DC technician will confirm that the host is still in `Maintenance Mode` and that the disk was removed in Prism. Once confirmed, the technician will physically remove the faulty disk and install a replacement.

 

### Step 6: Add the new disk in Prism Central (customer)

Once the intervention has been completed, customers are required to add the new disk as well as exit maintenance mode.

In Prism Element, go to `Hardware`, then `Table`, and then `Disk`.

Click `Add Disk` to attach the new hardware.

Switch to the `Host` section, select your host, and click `Exit Maintenance mode`.

**Note:**

The CVM will restart, VMs will migrate back automatically, and the node will rejoin the cluster.

 

### Step 7: Final validation

**Warning:**

**NOTE:** Complete this process within 2 hours of the disk replacement to ensure a successful cluster recovery.

Check that the following conditions exist in your cluster:

- Cluster health: `Normal`
- Data resiliency: `OK`
- No maintenance or disk alerts remain.
- All VMs and services are online.

 

## 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.