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.

公开(公告)号：US11301436B2

公开(公告)日：2022-04-12

申请号：US16687070

申请日：2019-11-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Tianyu Wo ,  Lian Du ,  Xin Bai

IPC: G06F12/00 ,  G06F16/00 ,  G06F16/185 ,  G06F16/11 ,  G06F16/13

Abstract: A method for file storage and a storage device are disclosed. The method includes: receiving, by a file system, a file create request sent by an application, where the file create request includes a file storage characteristic and a file storage path; selecting, by the file system from M domains based on the file storage characteristic, a domain whose domain storage characteristic has a highest degree of conformity with the file storage characteristic as a target domain; creating, by the file system, a file in the target domain; and adding, by the file system, the file to a directory tree based on the file storage path. The method can facilitate file and directory management in a storage device.