The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 06, 2019

Filed:

Apr. 28, 2017
Applicant:

Huawei Technologies Co., Ltd., Shenzhen, CN;

Inventors:

Jun Xu, Hangzhou, CN;

Yuangang Wang, Shenzhen, CN;

Guanyu Zhu, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 17/00 (2019.01); G06F 12/02 (2006.01); G06F 9/50 (2006.01); G06F 16/182 (2019.01);
U.S. Cl.
CPC ...
G06F 3/0608 (2013.01); G06F 3/061 (2013.01); G06F 3/067 (2013.01); G06F 3/0631 (2013.01); G06F 3/0643 (2013.01); G06F 3/0644 (2013.01); G06F 9/5016 (2013.01); G06F 12/023 (2013.01); G06F 17/00 (2013.01); G06F 16/183 (2019.01); G06F 2212/1044 (2013.01);
Abstract

A file access method, a system, and a host are provided. According to the method, after obtaining information about first virtual space of a target file, a host allocates, in local virtual address space of the host, second virtual space to the target file, where the first virtual space is space allocated in global virtual address space by a management node in a distributed storage system to the target file. The host converts, according to a correspondence between the first virtual space and the second virtual space, a second access request of accessing the second virtual space into a first access request, where an address of the first virtual space in the first access request includes device information of a first storage node. Then, the host sends the first access request to a network device to route the first access request to the first storage node.


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