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File level hierarchical storage management system, method, and apparatus

A storage system and file technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as reducing unit price, and achieve the effect of shortening time

Active Publication Date: 2012-09-12
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In addition, in recent years, despite the growing necessity to store a large number of files, there is also a need to reduce the unit price per storage capacity

Method used

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  • File level hierarchical storage management system, method, and apparatus
  • File level hierarchical storage management system, method, and apparatus
  • File level hierarchical storage management system, method, and apparatus

Examples

Experimental program
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no. 1 example

[0037] figure 1 is a diagram of a hardware configuration of a computer system for implementing the present invention.

[0038] The file server 101 provides a file access service to the client 104 . The file access service enables data to be stored in files or read according to protocols such as NFS (Network File System) or CIFS (Common Internet File Service). File server 101 and client 104 are coupled via a network interface such as Ethernet. Client 104 is a PC or a server, and there may be multiple clients. It should be noted that, for the connection configuration between the client 104 and the file server 101, figure 1 A direct connection is exemplified, but a connection configuration in which the client 104 and the file server 101 are coupled to each other via a network device such as a switch or a router may also be used.

[0039] The file server 101 stores data in the storage subsystem 102 and the storage subsystem 103 . The file server 101 communicates with the stor...

no. 2 example

[0175] Next, we will refer to Figure 18 A second embodiment of the present invention is described. The difference between the first embodiment and the second embodiment is that the file server 101 accesses the storage subsystem 103 via the file server 18101 . It should be noted that the file server 18101 has the same type of hardware configuration as that of the file server 101, and has the same operation as the operating system 230 stored in the memory of the file server 18101 (but they are not necessarily identical) The type of system (but event notification is not required).

[0176] As an example of configuring a file service system having a plurality of file servers 101, the file server 101 performs processing for realizing high-performance file access processing, and the file server 18101 realizes additional functions such as high reliability and WORM; and, when This embodiment can be adopted when the above two functional features are both provided by the file service...

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Abstract

Time required for a file server to determine files to be migrated from a first storage region to a second storage region is reduced. A file service system coupled to the storage system for providing a first storage region and a second storage region stores identifiers of files that have been accessed by a client, in accessed file identifier information and determines the files to be migrated from the first storage region to the second storage region based on metadata of the files stored in the first storage region and the accessed file identifier information.

Description

technical field [0001] The present invention relates to a file service provisioning device, system and method for storing files using storage areas of different characteristics. Background technique [0002] A device called NAS (Network Attached Storage) or a file server is generally used to store files of multiple client computers (hereinafter simply referred to as "clients"). The file server stores files created by clients by reading data from or writing data to the storage system, which can be accessed in units of blocks. [0003] Furthermore, in recent years, although the necessity of storing a large number of files has been growing, there is also a need to reduce the unit price per storage capacity. Patent Document 1 discloses a technology for migrating files stored in a high-speed storage device and not accessed for a certain amount of time to a low-speed storage device, which does not change the relationship between the high-speed storage device and the low-speed sto...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/164G06F16/119G06F16/122G06F16/185
Inventor 须藤敦之高田昌忠龟井仁志高冈伸光中野隆裕岛田明男
Owner HITACHI LTD
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