公开(公告)号：US20220342686A1

公开(公告)日：2022-10-27

申请号：US17238604

申请日：2021-04-23

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Da Long Wang ,  Qin Yue Chen ,  Xue Lian Feng ,  Yang Liang ,  Yang Yang Feng ,  Bin Xiong

IPC: G06F9/455 ,  G06F16/11 ,  G06F16/174

Abstract: VM file management includes detecting a user request to access to a virtual machine (VM) and searching a pre-defined list to determine whether the user requesting access is identified on the list. If so, a file-level snapshot is generated prior to enabling modification of a VM file by the user. The file-level snapshot includes a user attribute and is added as the top layer of a stack. The user attribute indicates a role of the user for whom the file-level snapshot is created. Each layer of the stack contains one or more other file-level snapshots. The VM file is written in the file's entirety to the snapshot in response to the user modifying the VM file. Based on the user attribute of each snapshot, a set of snapshots is selected from the stack, and the VM is modified by merging the VM files belonging to the set of snapshots selected.

公开(公告)号：US12229577B2

公开(公告)日：2025-02-18

申请号：US17238604

申请日：2021-04-23

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： Da Long Wang ,  Qin Yue Chen ,  Xue Lian Feng ,  Yang Liang ,  Yang Yang Feng ,  Bin Xiong

IPC: G06F9/455 ,  G06F16/11 ,  G06F16/174

Abstract: VM file management includes detecting a user request to access to a virtual machine (VM) and searching a pre-defined list to determine whether the user requesting access is identified on the list. If so, a file-level snapshot is generated prior to enabling modification of a VM file by the user. The file-level snapshot includes a user attribute and is added as the top layer of a stack. The user attribute indicates a role of the user for whom the file-level snapshot is created. Each layer of the stack contains one or more other file-level snapshots. The VM file is written in the file's entirety to the snapshot in response to the user modifying the VM file. Based on the user attribute of each snapshot, a set of snapshots is selected from the stack, and the VM is modified by merging the VM files belonging to the set of snapshots selected.

公开(公告)号：US12093220B1

公开(公告)日：2024-09-17

申请号：US18341827

申请日：2023-06-27

Applicant: International Business Machines Corporation

Inventor： Da Long Wang ,  Zhan Peng Huo ,  Yu Sun ,  Hong Yi Zhang

IPC: G06F17/00 ,  G06F16/174 ,  G06F16/535

CPC classification number: G06F16/1756 ,  G06F16/535

Abstract: A computer implemented method manages an image. A number of processor units identifies a set of base files in a set of image layers for a candidate file in a container layer in response to a request to create a new image with the candidate file. The number of processor units identifies delta data between the candidate file and the set of base files. The number of processor units creates the new image with a new top image layer using the delta data identified for the candidate file in the container layer. According to other illustrative embodiments, a computer system, and a computer program product for managing an image are provided. As a result, the illustrative embodiments provide a technical effect of reducing the size of images and reducing storage space used to store the images.