---
title: "esx.problem.vmfs.volume.locked"
description: "VMFS volume on the host is locked due to an I/O error. I/O error, perhaps caused by bad shutdown due to power failure, or faulty controller/connection."
canonical: "https://helpcenter.veeam.com/docs/mp/kb/h.esx.problem.vmfs.volume.locked.html"
breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Storage Error > esx.problem.vmfs.volume.locked"
dateModified: "2026-09-10"
---

# esx.problem.vmfs.volume.locked

## Summary

VMFS volume on the host is locked due to an I/O error.

## Causes

I/O error, perhaps caused by bad shutdown due to power failure, or faulty controller/connection.

## Resolutions

You may attempt to reload the VMFS volume metadata with the following command:

&nbsp;# vmkfstools -B \<vmfs device\>

Refer to this [VMware KB article](http://kb.vmware.com/kb/1009570) for more information.

## External

Refer to the [VMware Online Documentation](https://techdocs.broadcom.com/) for more information on vCenter event messages and possible solutions.