Esxi Repair Corrupt Vmdk May 2026

If the data is irreplaceable and native tools fail, professional recovery services may be the last resort – but they are expensive. Prevention through robust storage, clean shutdowns, and backups is always better than any repair method. Provide the exact error message from vmkfstools -x check for a more targeted solution.

# Clone the current state from snapshot chain vmkfstools -i corruptVM-000001.vmdk -d thin recovered.vmdk vmkfstools -i corruptVM-000001.vmdk -d thin -a lsilogic consolidated.vmdk 4.3 Using vmfs-tools (Linux-based recovery) Boot a Linux live CD and install vmfs-tools: esxi repair corrupt vmdk

| Type | Description | |------|-------------| | | The small text file (flat.vmdk descriptor) is damaged or missing. | | Flat file corruption | The large binary data file is corrupted. | | Metadata corruption | Internal filesystem metadata inside VMDK is damaged. | | Snapshot chain corruption | Delta VMDK files or child/parent relationships are broken. | | VMFS filesystem issues | The underlying datastore has problems. | 3. Built-in ESXi Repair Tools 3.1 vmkfstools – The Primary Utility vmkfstools is the native VMware disk management tool. a) Check VMDK: vmkfstools -x check /path/to/your.vmdk b) Repair VMDK (Descriptor & Basic Corruption): vmkfstools -x repair /path/to/your.vmdk This fixes certain structural issues in the descriptor and basic metadata. c) Clone Disk to Bypass Bad Sectors: vmkfstools -i /path/to/corrupt.vmdk -d thin /path/to/new.vmdk Cloning can skip unreadable sectors, effectively recovering rest of the data. d) Convert VMDK to Raw and Back: # To raw vmkfstools -i input.vmdk -a lsilogic -d raw output.raw Back to VMDK vmkfstools -i output.raw -d thin repaired.vmdk 3.2 ESXi Command-Line Recovery Steps Step-by-step repair attempt: If the data is irreplaceable and native tools

Introduction A Virtual Machine Disk (VMDK) file is the backbone of any VMware virtual machine. When it becomes corrupt, the VM may fail to power on, throw I/O errors, crash randomly, or become completely inaccessible. Corrupt VMDK files can result from abrupt power loss, storage failures, snapshot issues, network interruptions during migration, or hardware problems. # Clone the current state from snapshot chain

| Tool | Use Case | |------|----------| | | Recovers VMDK from corrupted VMFS datastores. | | SysTools VMDK Recovery | Extracts data from corrupt VMDK without ESXi. | | Stellar Phoenix VMDK Recovery | Repairs corrupt virtual disks and recovers files. | | R-Studio for VMFS | Advanced VMFS datastore recovery. | | UFS Explorer | Professional VMFS & VMDK recovery. | | Veeam FLR | If backups exist, perform file-level recovery. |

sudo apt-get install vmfs-tools # Debian/Ubuntu vmfs-fuse /dev/sdb1 /mnt/vmfs # Now copy VMDK files out Then repair using qemu-img or vmware-mount (VMware Virtual Disk Development Kit). When built-in tools fail, consider these: