Title:
METHOD, DEVICE AND APPARATUS FOR PROCESSING WRITE REQUEST
Document Type and Number:
WIPO Patent Application WO/2018/107772
Kind Code:
A1
Abstract:
The present invention relates to the technical field of data storage. Provided are a method, device and apparatus for processing a write request. The method comprises: a first terminal respectively transmitting a write request to a first storage apparatus and a second storage apparatus (S402); when all or a part of logical addresses corresponding to the write request have been locked or are to be locked, the storage apparatus transmitting a decline response to the first terminal, the decline response indicating that the all or part of the logical addresses corresponding to the write request have been locked or are to be locked (S404b); the first terminal forwarding the write request to a second terminal (S406-S407); and after the all or part of the addresses have been unlocked, causing the second terminal to respectively transmit the write request to the first storage apparatus and the second storage apparatus (S408). The present invention prevents a conflict between an address corresponding to a write request and an address corresponding to another write request or a data synchronization request, and greatly improves processing performance of a backup data center.
Inventors:
ZENG YONGQIANG (CN)
Application Number:
PCT/CN2017/096052
Publication Date:
June 21, 2018
Filing Date:
August 04, 2017
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G06F3/06; G06F11/14
Foreign References:
| CN106843749A | 2017-06-13 | |||
| CN103827843A | 2014-05-28 | |||
| CN104516793A | 2015-04-15 | |||
| CN101562761A | 2009-10-21 | |||
| US20130007368A1 | 2013-01-03 |
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