Title:
DEVICE HOT-REPLACEMENT METHOD AND APPARATUS BASED ON VIRTUAL MACHINE
Document Type and Number:
WIPO Patent Application WO/2017/067213
Kind Code:
A1
Abstract:
A device hot-replacement method and apparatus based on a virtual machine. The method comprises: receiving a hot-replacement command (S310), the hot-replacement command carrying a virtual magnetic disk identifier, and the virtual magnetic disk identifier being corresponding to a logical device that needs to be replaced; generating a simulated logical device (S320), the simulated logical device having an identifier; sending control information of the logical device to the simulated logical device (S330), so that the simulated logical device can respond to a control instruction in a manner of acting as an agent of the logical device to be replaced; deleting a mapping relationship between the identifier of the virtual magnetic disk and the identifier of the logical device to be replaced according to the hot-replacement command (S340); and establishing a mapping relationship between the identifier of the virtual magnetic disk and the identifier of the simulated logical device (S350). Accordingly, when a fault occurs on a logical device, the logical device is replaced by a simulated logical device to respond to a corresponding control instruction, and further, a virtual machine can normally perform control operations on the device.
Inventors:
XIAO QINGHANG (CN)
Application Number:
PCT/CN2016/087920
Publication Date:
April 27, 2017
Filing Date:
June 30, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F9/455
Foreign References:
| CN105279010A | 2016-01-27 | |||
| CN104317759A | 2015-01-28 | |||
| CN101430670A | 2009-05-13 | |||
| US20140325170A1 | 2014-10-30 | |||
| US20100107158A1 | 2010-04-29 |
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