发明公开
EP2479677A1 METHOD, SYSTEM AND PHYSICAL HOST FOR VIRTUAL MACHINE (VM) STORAGE SPACE MANAGEMENT
审中-公开
用于虚拟机（VM）存储空间管理的方法，系统和物理主机
- 专利标题： METHOD, SYSTEM AND PHYSICAL HOST FOR VIRTUAL MACHINE (VM) STORAGE SPACE MANAGEMENT
- 专利标题（中）： 用于虚拟机（VM）存储空间管理的方法，系统和物理主机
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申请号： EP11779077.4申请日： 2011-05-13
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公开(公告)号： EP2479677A1公开(公告)日： 2012-07-25
- 发明人: YANG, Xiaowei , WANG, Zhikun
- 申请人： Huawei Technologies Co., Ltd.
- 申请人地址： Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 CN
- 专利权人： Huawei Technologies Co., Ltd.
- 当前专利权人： Huawei Technologies Co., Ltd.
- 当前专利权人地址： Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 CN
- 代理机构： Thun, Clemens
- 优先权： CN201010530638 20101103
- 国际公布： WO2012058917 20120510
- 主分类号： G06F12/08
- IPC分类号： G06F12/08
摘要：
A method for managing Virtual Machine (VM) storage space is provided. In the method, a Storage Balloon Agent (SBA) module deployed in a VM is adopted to directly acquire virtual storage free block information and deliver the acquired virtual storage free block information to a Storage Balloon Daemon (SBD) module deployed in a Virtual Machine Monitor (VMM) layer; and the SBD module releases a part or all of physical storage space corresponding to the virtual storage free block information, and marks virtual storage blocks corresponding to the released physical storage space as unavailable. A corresponding system and a physical host are further provided in the present invention. Through the method of an embodiment of the present invention, use condition of virtual storage space can be acquired in real time, and a large number of read and write operations of a storage system can be avoided. The method is applicable to both a virtual storage system in a dynamic allocation format and a virtual storage system in a pre-allocation format.
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