Invention Grant
US09323758B1 Efficient migration of replicated files from a file server having a file de-duplication facility
有权
从具有文件重复数据删除功能的文件服务器高效迁移复制的文件
- Patent Title: Efficient migration of replicated files from a file server having a file de-duplication facility
- Patent Title (中): 从具有文件重复数据删除功能的文件服务器高效迁移复制的文件
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Application No.: US12644849Application Date: 2009-12-22
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Publication No.: US09323758B1Publication Date: 2016-04-26
- Inventor: Christopher H. Stacey , Paul LeMahieu
- Applicant: Christopher H. Stacey , Paul LeMahieu
- Applicant Address: US MA Hopkinton
- Assignee: EMC Corporation
- Current Assignee: EMC Corporation
- Current Assignee Address: US MA Hopkinton
- Agency: Novak Druce Connolly Bove + Quigg LLP
- Agent Richard Auchterlonie
- Main IPC: G06F17/30
- IPC: G06F17/30 ; G06F11/14
Abstract:
Needless migration of duplicate file data is avoided by recording in a database a record of migration of a first instance of a replicated file from a source file server to a target file server. When migrating a subsequent instance of a replicated file to the target file server, the database is searched for a record of replication of a first instance of the replicated file to the target file server. If such a record is found, the subsequent instance is replicated by sending from the source file server to the target file server attributes of the subsequent instance of the replicated file and an identification of the previously migrated data of the replicated file without re-transmission of the previously migrated data of the replicated file.
Information query
