# Maintenance Mode

HVM cluster hosts can be easily taken out of service for maintenance when needed. From the host detail page, click ACTIONS and then click “Enter Maintenance.” When entering maintenance mode, the host will be removed from the pool. Live VMs that can be migrated will be moved to new hosts. VMs that are powered off will also be moved when possible. When a live VM cannot be moved (such as if it’s “pinned” to the host), the host will not go into maintenance mode until that situation is cleared. You could manually move a VM to a new host or you could power it down if it’s non-essential. After taking that action, attempt to put the host into maintenance mode once again. HPE Morpheus Enterprise UI provides a helpful dialog which shows you which VMs live on the host are to be moved as the host goes into maintenance mode. When maintenance has finished, go back to the ACTIONS menu and select “Leave Maintenance.”

![../../_images/enterMaintenance.png](https://support.hpe.com/hpesc/public/api/document/sd00007732en_us/GUID-18F5E0CD-4DD0-4720-8DA0-E81B1048013B-high.png)

## Image transcriptions

> Transcribed from the image above by local vision OCR (qwen2.5vl:7b); verify against the source image.

| Action | Description |
|--------|-------------|
| CANCEL | Cancels entering maintenance mode |
| CONFIRM | Confirms entering maintenance mode |

The text within the dialog box explains what happens when you enter maintenance mode:
- Entering maintenance mode will remove a host from the pool.
- All VMs running must first be offloaded. If they can be live migrated, they will be; if powered off, they will be moved elsewhere when possible.
- The operation will fail until it is remedied.

The specific VM mentioned in the dialog box is `ah-mvm-ubuntu-02`, which will be moved during maintenance mode.
