Vmdk Check Tool

: This is the standard command-line utility for VMware Workstation users. To check and repair a disk, you can run the command vmware-vdiskmanager.exe -R "path_to_vmdk_file" .

| Tool | Command Example | Function | |------|----------------|----------| | | vmkfstools --checkconsistency /vmfs/volumes/datastore1/VM/VM.vmdk | Validates disk chain consistency (parent-child relationships for snapshots/delta disks). | | vmkfstools | vmkfstools --fixcheck /vmfs/volumes/datastore1/VM/VM-flat.vmdk | Attempts repair of sparse disk metadata. | | voma (VMFS Offline Metadata Analyzer) | voma -m vmfs -f check -d /dev/disks/... | Scans VMFS metadata and can validate VMDK pointers at the filesystem level. | | vmfsfilelockinfo | vmfsfilelockinfo --filename /path/VM.vmdk | Checks file lock consistency but not corruption. | vmdk check tool

When no third-party tools are available, admins can perform these checks: : This is the standard command-line utility for

When native tools report that a disk "cannot be repaired," professional software provides advanced scanning algorithms to extract data from severely damaged files. | | vmfsfilelockinfo | vmfsfilelockinfo --filename /path/VM

| Tool | Type | VMDK Check Capabilities | |------|------|-------------------------| | | Free | Includes "VMDK health check" before conversion. | | R-Studio Technician | Commercial | Opens VMDK, scans for filesystem structures, rebuilds damaged descriptors. | | DiskInternals VMFS Recovery | Commercial | Reads VMFS and validates VMDK block integrity. | | Veeam Backup & Replication | Enterprise | Backup health checks include "SureBackup" – automatically tests VMDK by powering on VMs in sandbox. | | VMware vSphere CLI | Free | vmkdump (basic dump utility) not a checker. |