Title:
COMPUTER SYSTEM AND RECORDING MEDIUM USING A VIRTUAL FILE SYSTEM IN A HIERARCHICAL STORAGE MANAGEMENT
Document Type and Number:
WIPO Patent Application WO/2011/108030
Kind Code:
A1
Abstract:
A computer system comprising storage devices having different characteristics, a client computer, and a file access controller managing the storage devices with a hierarchical storage management system is disclosed. The file access controller provides a normal directory tree and a virtual directory tree, according to the configuration, and provides a first file stored in a first storage device through the normal directory tree and the virtual directory tree. And, the file access controller switches providing of a second file stored in a second storage device, depending on a used directory tree, which is used by the at least one client computer, and which is the normal directory tree or the virtual directory tree. Examples of the switch are about accessibility of the second file and recall processing of the second file.
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Inventors:
MATSUMOTO SHINYA (JP)
AKAGAWA ETSUTARO (JP)
NAKANO TAKAHIRO (JP)
AKAGAWA ETSUTARO (JP)
NAKANO TAKAHIRO (JP)
Application Number:
PCT/JP2010/001563
Publication Date:
September 09, 2011
Filing Date:
March 05, 2010
Export Citation:
Assignee:
HITACHI LTD (JP)
MATSUMOTO SHINYA (JP)
AKAGAWA ETSUTARO (JP)
NAKANO TAKAHIRO (JP)
MATSUMOTO SHINYA (JP)
AKAGAWA ETSUTARO (JP)
NAKANO TAKAHIRO (JP)
International Classes:
G06F17/30; G06F3/06
Domestic Patent References:
| WO2004025404A2 | 2004-03-25 | |||
| WO2004107151A1 | 2004-12-09 |
Foreign References:
| US6356915B1 | 2002-03-12 | |||
| US20060010169A1 | 2006-01-12 | |||
| US20020095416A1 | 2002-07-18 | |||
| US20040230599A1 | 2004-11-18 | |||
| US7225211B1 | 2007-05-29 | |||
| US20080091638A1 | 2008-04-17 | |||
| US7225211B1 | 2007-05-29 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL (3 Kanda-Ogawamachi 3-chome, Chiyoda-ku, Tokyo 52, JP)
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Claims: