Repair Vmfs Volume May 2026

When a VMFS volume becomes corrupted or inaccessible, . Acting methodically is crucial to avoid permanent data loss.

VMFS (Virtual Machine File System) is the backbone of VMware vSphere datastores. While robust, it is not immune to corruption. Issues can arise from sudden power loss, faulty storage hardware, improper VMFS version upgrades, or failed LUN resizing. repair vmfs volume

esxcli storage vmfs mount -l "datastore-name" -U "device-uuid" If mounting fails with a clear error (e.g., "File system is inconsistent" ), you need file system repair. Critical note: Never run repairs on an actively used VMFS volume. Put the ESXi host into maintenance mode or, ideally, boot into a recovery environment or use a Linux VM with direct LUN access. When a VMFS volume becomes corrupted or inaccessible,

First, identify the VMFS device UUID: