公开(公告)号：US09330103B1

公开(公告)日：2016-05-03

申请号：US14229323

申请日：2014-03-28

Applicant: EMC Corporation

Inventor： Jean-Pierre Bono ,  Yuanyang Wu ,  Frederic Corniquet ,  Walter C. Forrester ,  Jeffrey A. Monin

IPC: G06F17/00 ,  G06F17/30

CPC classification number: G06F17/30079 ,  G06F17/30123

Abstract: A technique for managing access to files by different data storage systems includes a data storage system generating an E-FSID (export FSID) for a file system in addition to a conventional FSID and providing the E-FSID in file handles that the data storage system generates for providing clients with access to the file system. The E-FSID is shared between/among different data storage systems, with each data storage system including data for cross-referencing the E-FSID to a respective local FSID for the file system. Because the E-FSID for a file is the same across different data storage systems, file handles continue to work after failover, migration, and other transitions.

Abstract translation: 用于管理不同数据存储系统对文件的访问的技术包括除常规FSID之外还为文件系统生成E-FSID（输出FSID）的数据存储系统，并且在文件处理中提供数据存储系统的E-FSID 生成为客户端访问文件系统。 E-FSID在不同数据存储系统之间/之间共享，每个数据存储系统包括用于将E-FSID交叉引用到文件系统的相应本地FSID的数据。 因为文件的E-FSID在不同的数据存储系统中是相同的，所以文件句柄在故障转移，迁移和其他转换之后继续工作。