Establishing a mapping to a virtual disk

摘要

A system, computer program product, and computer implemented method for mapping a Virtual machine (VM) drive to underlying storage, the method comprising locating a signature for a disk mounted to a VM, finding one or more files storage on a storage medium representing the virtual machine file system (VMFS) for a hypervisor that is running the VM, finding a portion of the one or more files on the storage medium that contains the signature, mapping the found portion of the one or more files to be the disk of the VM.

主权项

1. A computer implemented method for mapping a Virtual machine (VM) drive to underlying storage, the method comprising:
locating a signature for a physical disk mounted to a VM, the signature to the physical disk being assigned by an operating system; creating a snapshot of the physical disk to the VM while the VM is in operation; querying the snapshot of the physical disk in read-only mode for the signature; finding a signature associated with at least one or more files on a storage medium representing a virtual machine file system (VMFS) for a hypervisor that is running the VM; finding a portion of the at least one or more files on the storage medium that contains the signature; comparing the signature of the snapshot of the physical disk with the signature associated with at least one or more files on the storage medium until a common signature is found; and
mapping the found portion of the at least one or more files on the storage medium for the hypervisor to the physical disk mounted on the VM.