Title:
VIRTUAL MACHINE DISK SPACE RECLAMATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/149184
Kind Code:
A1
Abstract:
Embodiments of the invention provide a virtual machine disk space reclamation method and system. The method comprises: upon receiving a virtual machine disk space reclamation request, a virtual machine operating system determining a deleted file in a virtual machine file system and sending a zero-filling request to the virtual machine file system, the zero-filling request carrying information of the space occupied by the deleted file. When the virtual machine disk space reclamation request is received, the deleted file is determined by scanning files in a virtual disk, and information of the space occupied by the deleted file can be automatically carried in the zero-filling request, facilitating disk space reclamation control of a virtual disk controller. In addition, there is no need for users to acquire and manually configure information of a disk space size to be reclaimed, improving realizability of the virtual machine disk space reclamation method.
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Inventors:
ZHANG LEIQIANG (CN)
BO HAI (CN)
LI TANGZHEN (CN)
BO HAI (CN)
LI TANGZHEN (CN)
Application Number:
PCT/CN2019/073612
Publication Date:
August 08, 2019
Filing Date:
January 29, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F3/06
Foreign References:
| CN108363552A | 2018-08-03 | |||
| CN104572656A | 2015-04-29 | |||
| CN103383648A | 2013-11-06 | |||
| CN105786655A | 2016-07-20 | |||
| US9311375B1 | 2016-04-12 |
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