
Recover Vmdk From Flat File Direct
# Example for a 4GB disk vmkfstools -c 4294967296 -d thin temp.vmdk Use code with caution. : Specifies the size in bytes.
Have you ever had to recover a flat file? Did you use a third-party tool or the manual method? Let me know in the comments!
: Creates a thin-provisioned disk to save space and time during the recovery. 3. Prepare the New Descriptor File recover vmdk from flat file
#DDB
vmkfstools -c <size_in_bytes> -a lsilogic /vmfs/volumes/datastore_name/vmname/vmname.vmdk # Example for a 4GB disk vmkfstools -c
This guide provides a detailed walkthrough for recreating the descriptor file and restoring your VM using the ESXi command line. Prerequisites Before starting, ensure you have the following: : Enabled on your ESXi host. Root Credentials : Necessary for executing vmkfstools .
Run the following command on the ESXi host where the datastore is mounted: Did you use a third-party tool or the manual method
: Access to the directory where the orphaned -flat.vmdk resides. Step-by-Step Recovery Process 1. Identify Disk Specifications
Use the vmkfstools utility to generate a new "dummy" disk of the exact same size. This ensures the new descriptor has the correct disk geometry.
: Check the VM's .vmx configuration file for the scsi#.virtualDev entry (common types include lsilogic or pvscsi ). 2. Create a Temporary Descriptor
To recover a VMDK from a -flat.vmdk file, you must (the small text file that points to the actual data). This process essentially "marries" a new header to your existing data. Prerequisites Power off the virtual machine associated with the disk. Enable SSH on your ESXi host and log in as root.

