公开(公告)号：US11256445B2

公开(公告)日：2022-02-22

申请号：US16587882

申请日：2019-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wo ,  Junbin Kang ,  Xin Bai

IPC: G06F3/06 ,  G06F9/455 ,  G06F12/1009

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.

公开(公告)号：US20200026473A1

公开(公告)日：2020-01-23

申请号：US16587882

申请日：2019-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wo ,  Junbin Kang ,  Xin Bai

IPC: G06F3/06 ,  G06F12/1009 ,  G06F9/455

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.