公开(公告)号：US20140250155A1

公开(公告)日：2014-09-04

申请号：US14278744

申请日：2014-05-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhuo Chen ,  Jin Xiong

IPC: G06F17/30

CPC classification number: G06F17/30091 ,  G06F17/30218 ,  G06F17/30224

Abstract: The present invention provides a metadata storage system and a management method for a cluster file system. The metadata of the cluster file system is stored by using a DRAM+SSD+HDD three-tier architecture, and the metadata is written sequentially into a metadata buffer in the DRAM based on write-in time. When a metadata buffer fully written, it is written back into the SSD sequentially to form a new metadata storage unit, and corresponding metadata index information in a header structure thereof is stored into the DRAM in a form of a metadata index unit.

Abstract translation: 本发明提供了一种用于集群文件系统的元数据存储系统和管理方法。 通过使用DRAM + SSD + HDD三层架构来存储集群文件系统的元数据，并且基于写入时间将元数据顺序写入到DRAM中的元数据缓冲器中。 当完全写入元数据缓冲器时，将其顺序​​地写回到SSD中以形成新的元数据存储单元，并且其标题结构中的对应的元数据索引信息以元数据索引单元的形式存储到DRAM中。