: Works best for flat (non-snapshot) VMDKs. For delta (snapshot) chains, use vmkfstools -x repair on the child disk.
Verify that another ESXi host does not hold an active file lock on the VMDK. This often happens after an ungraceful cluster failover. repair vmdk file corruption esxi
If you have Veeam, Commvault, or vSphere Replication enabled: : Works best for flat (non-snapshot) VMDKs
If the VMDK structure is sound, but the guest OS (Windows/Linux) shows file corruption or blue screens, the issue is likely filesystem corruption inside the disk. repair vmdk file corruption esxi
You can reconstruct it from scratch using the native ESXi CLI tool, vmkfstools . 1. Enable and Connect to ESXi Shell