COMPUTER, DATA ACCESS MANAGEMENT METHOD AND RECORDING MEDIUM

• US 20150331916A1
• Filed: 02/06/2013
• Published: 11/19/2015
• Est. Priority Date: 02/06/2013
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: KODAMA, Shoji, HARUNA, Takaaki, KOJIMA, Go, TAKAOKA, Nobumitsu
• Application Number:
  US14/427,949
• Publication Number:
  US 20150331916A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 16/13 File access structures, e.g. distributed indices arrangements of input from, or output to, record carriers G06F3/06
• CPC Class Codes: G06F 16/1824 implemented using Network-attached Storage [NAS] architecture distributed or networked storage systems G06F3/067; protocols for distributed storage of data in a network H04L67/1097
• CPC Class Codes: G06F 16/185 Hierarchical storage management [HSM] systems, e.g. file migration or policies thereof details of archiving G06F16/11
• CPC Class Codes: G06F 16/23 Updating
• CPC Class Codes: G06F 16/254 Extract, transform and load [ETL] procedures, e.g. ETL data flows in data warehouses
• CPC Class Codes: G06F 16/283 Multi-dimensional databases or data warehouses, e.g. MOLAP or ROLAP

Abstract

A computer system including a shared file server manages the access to file data for performing access to the file data accurately and efficiently. This computer includes a plurality of first name spaces to which is assigned an access path to data stored in a storage area, and a name space to which is assigned a path corresponding to the access path and which is different from the first name spaces. When the access paths generated in different first name spaces are the same, the corresponding paths which correspond to the same access paths are changed into mutually different paths. Moreover, by assigning a path corresponding to the data to be analyzed, it is possible to efficiently access the requested data among a large amount of data. In addition, the sorting of the corresponding paths is changed according to the load of the computer storing the data.

Claims

1. A computer including a plurality of first name spaces to which an access path to data stored in a storage area is assigned, and a name space to which a path corresponding to the access path is assigned and which is different from the first name spaces,

wherein the computer comprises a control unit for changing, when the access paths generated in different first name spaces are the same, the corresponding paths which correspond to the same access paths into mutually different paths.

2. The computer according to claim 1,

wherein the computer includes a correspondence table for managing the access paths and change information for changing the access paths, and

wherein the control unit refers to the change information and changes the corresponding paths into different paths.

3. The computer according to claim 2,

wherein the computer includes data designation information for designating data to be analyzed from the data, and

wherein the control unit assigns the corresponding paths to a data designation result designated based on the data designation information.

4. The computer according to claim 2,

wherein the computer is coupled to a plurality of other computers including the storage area, and

wherein the control unit manages load information of each of the other computers, and sorts the access paths according to an execution content corresponding to the load information.

5. The computer according to claim 2,

wherein a path corresponding to the access path is a stub path.

6. A data access management method of a computer including a plurality of first name spaces to which an access path to data stored in a storage area is assigned, and a name space to which a path corresponding to the access path is assigned and which is different from the first name spaces,

wherein the computer changes, when the access paths generated in different first name spaces are the same, the corresponding paths which correspond to the same access paths into mutually different paths.

7. The data access management method according to claim 6,

wherein the computer includes a correspondence table for managing the access paths and change information for changing the access paths, and

refers to the change information and changes the corresponding paths into different paths.

8. The data access management method according to claim 7,

wherein the computer includes data designation information for designating data to be analyzed from the data, and

assigns the corresponding paths to a data designation result designated based on the data designation information.

9. The data access management method according to claim 7,

wherein the computer is coupled to a plurality of other computers including the storage area, and

manages load information of each of the other computers, and sorts the access paths according to an execution content corresponding to the load information.

10. The data access management method according to claim 7,

wherein a path corresponding to the access path is a stub path.

11. A computer-readable non-temporary recording medium storing a program for causing a computer including a plurality of first name spaces to which an access path to data stored in a storage area is assigned, and a name space to which a path corresponding to the access path is assigned and which is different from the first name spaces, to execute:

a step of changing, when the access paths generated in different first name spaces are the same, the corresponding paths which correspond to the same access paths into mutually different paths.