vmkfstools -x check /vmfs/volumes/datastore/VM/VM.vmdk
Virtual machine disk (VMDK) corruption can be a nightmare, often manifesting as error messages like "The specified virtual disk needs repair" or simply preventing your VM from booting. Whether caused by sudden power failures, virus attacks, or improper shutdowns, fixing it requires a systematic approach. Step 1: Critical Preparations fix vmdk corruption
Before we dive into the fixes, it's essential to understand the common causes of VMDK corruption: vmkfstools -x check /vmfs/volumes/datastore/VM/VM
qemu-img convert -f vmdk corrupt.vmdk -O raw temp.raw qemu-img convert -f raw temp.raw -O vmdk recovered.vmdk │ ▼ Backup the file │ ▼ vmkfstools
RW <sectors> VMFS "VM-flat.vmdk"
VMDK won't open? │ ▼ Backup the file │ ▼ vmkfstools -x check │ ┌───┴───┐ OK CORRUPT │ │ │ ▼ Use │ vmkfstools -x repair │ │ │ ┌────┴────┐ │ Fixed Failed │ │ │ ▼ │ Clone with vmkfstools -i │ │ │ ┌───┴───┐ │ Good Bad │ │ │ ▼ │ Third-party repair │ │ │ ┌───┴───┐ │ Fixed ───► Manual raw data recovery │ └─────► VM boots successfully
A VMDK (Virtual Machine Disk) file is a virtual disk file used by VMware to store the data of a virtual machine. It's a critical component of a VM, and corruption can lead to data loss, errors, and even VM failure.