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1. (WO2018045085) VIRTUAL DISK EXPANSION METHOD AND APPARATUS

Pub. No.:    WO/2018/045085    International Application No.:    PCT/US2017/049463
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Thu Aug 31 01:59:59 CEST 2017
IPC: G06F 3/06
G06F 9/455
G06F 9/50
G06F 12/00
G06F 12/02
Applicants: ALIBABA GROUP HOLDING LIMITED
Inventors: PENG, Lei
Title: VIRTUAL DISK EXPANSION METHOD AND APPARATUS
Abstract:
A virtual disk expansion method is disclosed in the present application, comprising: creating a virtual disk file according to system images and a target disk volume value contained in a received expansion request; mounting the virtual disk file to a physical host, and generating a virtual disk; reading partition information of the virtual disk; deleting a partition to be expanded of the virtual disk and creating a new partition according to a partition volume value of the partition to be expanded and an expansion value; and reading a file system of the virtual disk and expanding the file system to be adapted to the new partition. The virtual disk expansion method is realized based on a physical host, shortens the I/O path and improves the I/O efficiency; also, during the virtual disk expansion process, there is no need to start a virtual machine on the physical host and the expansion is performed before the start of the virtual machine, thereby reducing technical complexity and coupling.