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US 2011/0161607 A1Published application
Storage system and control method therefor
AssigneeHitachi, Ltd.
InventorKen Nomura
Life of this patent
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Abstract
There is provided a storage technique for efficiently solving concentration of accesses to a particular storage medium. In the present invention, in a storage system having multiple storage media which are physically separated, duplicates of multiple blocks forming particular contents are generated, and the duplicated blocks are uniformly (in stripes) stored in storage media other than the storage medium which stores the particular contents (see FIG. 1).
Claims15
A storage system comprising:
- multiple storage media (110 to 113) which are physically different from one another and each of which is configured by multiple blocks;
- a duplication source area determination processing section (144) for determining duplication source areas (100 to 108) configured by multiple blocks which are to be duplication sources, among the multiple storage media, in response to a duplication start signal;
- and
- a duplication processing section (144) for generating duplicates of the multiple blocks included in the duplication source areas, and distributing and storing the duplicates of the multiple blocks in the multiple storage media (duplication destination storage media (111 to 113)) other than the storage medium (110) including the duplication source areas (100 to 108).
1 more element
A method for controlling a storage system, wherein
- the storage system comprises:
- multiple storage media (110 to 113) which are physically different from one another and each of which is configured by multiple blocks;
- a duplication source area determination processing section (144) and a duplication processing section (144);
- and
- the control method comprises the steps of:
- the duplication source area determination processing section (144) determining duplication source areas (100 to 108) configured by multiple blocks which are to be duplication sources, among the multiple storage media (110 to 113), in response to a duplication start signal;
- and
- the duplication processing section (144) generating duplicates of the multiple blocks included in the duplication source areas (100 to 108), and distributing and storing duplicates of the multiple blocks in the multiple storage media (duplication destination storage media (111 to 113)) other than the storage medium (110) including the duplication source areas.
5 more elements
Dependencies are inferred from the claim text.