US 11,656,763 B2
File management method, distributed storage system, and management node
Jun Xu, Nanjing (CN); Junfeng Zhao, Shenzhen (CN); and Yuangang Wang, Shenzhen (CN)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on May 3, 2021, as Appl. No. 17/306,494.
Application 17/306,494 is a continuation of application No. 16/178,220, filed on Nov. 1, 2018, granted, now 11,029,848.
Application 16/178,220 is a continuation of application No. 15/428,527, filed on Feb. 9, 2017, granted, now 10,152,233, issued on Dec. 11, 2018.
Application 15/428,527 is a continuation of application No. PCT/CN2014/084196, filed on Aug. 12, 2014.
Prior Publication US 2021/0255775 A1, Aug. 19, 2021
Int. Cl. G06F 3/06 (2006.01); G06F 16/13 (2019.01)
CPC G06F 3/0607 (2013.01) [G06F 3/067 (2013.01); G06F 3/0631 (2013.01); G06F 3/0643 (2013.01); G06F 3/0652 (2013.01); G06F 16/13 (2019.01)] 18 Claims
OG exemplary drawing
 
1. A file management method, comprising:
receiving, by a distributed storage system, a file access request from a host to access a file stored in the distributed storage system, the distributed storage system comprising multiple storage nodes, the file access request comprising information about a first global virtual space in a global virtual address space of the distributed storage system, wherein the information about the first global virtual space comprises a file start address and a file size of the file in the global virtual address space;
determining, by the distributed storage system from the multiple storage nodes, a first storage node storing the file according to the information about the first global virtual space, the information about the first global virtual space being mapped to a first local virtual address space of the first storage node, and the first local virtual address space of the first storage node being mapped to a first local physical storage space of the first storage node for storing the file; and
sending, by the distributed storage system, the file access request to the first storage node for accessing the file.