--- title: "esx.problem.vmfs.error.volume.is.locked" description: "Host made an attempt to access a VMFS datastore that is locked by another host. 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.error.volume.is.locked.html" breadcrumb: "Veeam MP for VMware Online Knowledge Base > Event-Based Rules > vSphere Host Storage Error > esx.problem.vmfs.error.volume.is.locked" dateModified: "2026-09-10" --- # esx.problem.vmfs.error.volume.is.locked ## Summary Host made an attempt to access a VMFS datastore that is locked by another host. ## 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:  # vmkfstools -B \ 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.