Title:
共通名前空間においてディレクトリ単位のマイグレーションを実行するシステム及び方法
Document Type and Number:
Japanese Patent JP4772569
Kind Code:
B2
Abstract:
There has never been disclosed a method of executing migration on a fine-grained basis than a file system basis in a manner that is transparent to clients in a storage system with a plurality of servers to which a global name space is applied. In a storage system with a plurality of servers (110A, 110B) and a disk subsystem (120), which is coupled to the plurality of servers, a file system in the disk subsystem is assigned a first identifier, which is unique throughout the storage system, at least one of directories contained in the file system is assigned a second identifier, which is unique throughout the storage system, and a file contained in the file system is assigned a third identifier, which is unique throughout the file system. The server identifies a file below the directory that has the second identifier by the second identifier and by the third identifier.
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Inventors:
Agetsuma Kunikuni
Nakatani Yoji
Takaki Nakamura
Nakatani Yoji
Takaki Nakamura
Application Number:
JP2006106255A
Publication Date:
September 14, 2011
Filing Date:
April 07, 2006
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
G06F12/00; G06F3/06; G06F13/10
Domestic Patent References:
| JP2006092322A |
Attorney, Agent or Firm:
Masaki Goto
Masahiro Fujii
Masaaki Iida
Masahiro Fujii
Masaaki Iida