发明名称 |
Upgrading a guest operating system of an active virtual machine |
摘要 |
A method and device for upgrading a guest operating system (OS) of an active Virtual Machine (VM). The method includes: replicating the active VM to generate a backup VM; upgrading a guest OS of the backup VM; merging changes to be made to a virtual disk image file during running of the active VM and changes to be made to the virtual disk image file during the upgrading; pausing the backup VM; migrating an active process of a Java application program running in the active VM into the backup VM to generate a backup process; migrating resources occupied by the active process of the Java application program into the backup VM such that the backup process occupies the same resources; and resuming running of the backup VM. The device includes: a replicating unit; an upgrading unit; a merging unit; a migrating unit; and a control unit.
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申请公布号 |
US8458392(B2) |
申请公布日期 |
2013.06.04 |
申请号 |
US20090603610 |
申请日期 |
2009.10.22 |
申请人 |
GAO ZHI GUO;TIAN QI MING;XIA YIN BEN;XIANG ZHE;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
GAO ZHI GUO;TIAN QI MING;XIA YIN BEN;XIANG ZHE |
分类号 |
G06F12/00;G06F9/44;G06F12/16 |
主分类号 |
G06F12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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