US 2020/0026473 A1 · Virtual Disk File Format Conversion Method and Apparatus

Abstract

A virtual disk file format conversion method and an apparatus that relate to the field of virtualization technologies and to resolve a service interruption caused by offline conversion of a virtual machine disk image file format when a virtual machine is migrated between different types of VMMs. The method and apparatus include establishing a mapping table between a virtual address of a virtual machine (VM) disk image file and a physical address of a disk image file that is compatible with a virtual machine monitor (VMM), converting, according to the mapping table, the virtual address used when a user performs reading/writing on the VM disk image file, into the physical address mapped to the virtual address, and performing data reading/writing on the VM disk image file based on the physical address.

Claims20

Dependent claims

A virtual disk file format conversion method, implemented by a network device, comprising:

establishing a mapping table between a virtual address of a virtual machine (VM) disk image file and a physical address of a disk image file compatible with a virtual machine monitor (VMM);
converting, according to the mapping table, the virtual address into the physical address when a user performs a data reading operation or a data writing operation on the VM disk image file;
and
performing data reading or data writing on the VM disk image file based on the physical address.

1 more element

A network device, comprising:

a memory configured to store instructions;
and
a processor coupled to the memory, wherein the instructions cause the processor to be configured to:
establish a mapping table between a virtual address of a virtual machine (VM) disk image file and a physical address of a disk image file that is compatible with a virtual machine monitor (VMM);
convert, according to the mapping table, the virtual address into the physical address when a user performs a data reading operation or a data writing operation on the VM disk image file;
and
perform data reading or data writing on the VM disk image file based on the physical address.

4 more elements

A computer program product comprising computer-executable instructions for storage on a non-transitory computer-readable medium that, when executed by a processor, cause an apparatus to:

establish a mapping table between a virtual address of a virtual machine (VM) disk image file and a physical address of a disk image file compatible with a virtual machine monitor (VMM);
convert, according to the mapping table, the virtual address into the physical address when a user performs a data reading operation or a data writing operation on the VM disk image file;
and
perform data reading or data writing on the VM disk image file based on the physical address.

1 more element

Dependencies are inferred from the claim text.

Virtual Disk File Format Conversion Method and Apparatus

Life of this patent

Virtual Disk File Format Conversion Method and Apparatus

Life of this patent

Abstract

Claims20