Vmware Recover Vmfs __full__ ›
vmkfstools -D /vmfs/devices/disks/<NAA_ID>:1
VOMA is a built-in tool that checks VMFS metadata for consistency. It is generally used in "check" mode first to identify errors without modifying data.
Recovering a VMFS volume is a high-stakes operation. The vmfsPartitionGrowth trick for reformatted volumes is the most powerful native technique available to admins, but it relies on the metadata at the end of the disk remaining untouched. If native tools fail, immediately pivot to a block-level scan using third-party recovery utilities to extract your VMDKs. Always work on a clone or snapshot of the failed LUN whenever possible to ensure the original fault state is preserved.
The appropriate recovery method depends on the severity and type of corruption. vmware recover vmfs
Accidental re-initialization by a non-ESXi operating system (e.g., Windows or Linux) can overwrite critical VMFS headers.
| Tool | Key Feature | |------|--------------| | | RAID reconstruction, VMFS 3/5/6 support | | R-Studio for VMware | Remote recovery over SSH | | DiskInternals VMFS Recovery | Wizards for non-technical users | | Stellar Phoenix VMware Data Recovery | Corrupt VMDK repair |
| Tool | Purpose | |------|---------| | esxcli storage vmfs extent list | Show VMFS extents and their partitions | | voma (VMFS On-disk Metadata Analyzer) | Check and fix metadata corruption (run in read-only mode first) | | esxcli storage filesystem list | Verify datastore mount status | | tail -f /var/log/vmkernel | Real-time kernel logs | The vmfsPartitionGrowth trick for reformatted volumes is the
Understanding the root cause is essential for effective recovery. Typical triggers include:
Signs indicating possible VMFS corruption include:
This requires using the command line ( esxcli ). Proceed with caution. The appropriate recovery method depends on the severity
This is the most common "disaster" scenario. An admin formatted a VMFS volume as a new VMFS volume, effectively wiping the partition table.
If the datastore was working moments ago and is now gone, it is likely a connectivity or identity issue.
Specialized software like or UFS Explorer can scan the raw LUN at the block level. These tools do not rely on the partition table; they scan the disk looking for VMFS file signatures.