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AssigneeHitachi, Ltd.
InventorsTakaki Nakamura, Hideo Saito, Yoshinori Ohira, Azusa Jin
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To more effectively eliminate a resource imbalance among storage apparatuses, and shorten the time required for elimination in a computer system including a plurality of storage apparatuses and a computer. In a computer system including a plurality of storage apparatuses that provide a volume to a computer and a storage management device that manages the plurality of storage apparatuses, in a case where there is an instruction to create a new volume, the storage management device compares a distribution of feature amounts of all volumes provided by each storage apparatus and a distribution of feature amounts of all volumes in a case of providing a newly created volume in each storage apparatus, and instructs a storage apparatus having a largest difference in the distributions of the feature amounts to create a volume.
A computer system, comprising:
A computer system comprising:
A computer system comprising:
A computer system, comprising:
A volume placement method in a computer system including a plurality of storage apparatuses that provide a volume to a computer, and a storage management device that manages the plurality of storage apparatuses, wherein
A volume placement method in a computer system including a plurality of storage apparatuses that provide a volume to a computer, and a storage management device that manages the plurality of storage apparatuses, wherein
Dependencies are inferred from the claim text.
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Organizing or formatting or addressing of data: management of space entities, e.g. partitions, extents, pools
Plurality of storage devices: hybrid storage combining heterogeneous device types, e.g. hierarchical storage, hybrid arrays
Specifically adapted to achieve a particular effect: improving or facilitating administration, e.g. storage management
Improving I/O performance: in relation to throughput
About 12 years 10 months of term left · ends 7 Sep 2039 (estimated)
The present application claims priority to Japanese Patent Application No. 2018-219451 filed on Nov. 22, 2018, the content of which is hereby incorporated by reference into this application.
The present invention relates to a computer system and a volume arrangement method in the computer system.
There is a distributed storage system in which a storage system is configured with a plurality of storage apparatuses, and is expanded by adding a storage apparatus when performance and capacity are insufficient. In the distributed storage system, a deviation in resources such as storage service load and capacity may occur among the storage apparatuses. When the deviation in resources occurs, the storage service performance of the volume provided by a specific storage apparatus may decrease.
FIG. 1 is an overall configuration diagram of a computer system.
FIG. 2 is a hardware configuration diagram of a storage apparatus or a storage management device.
FIG. 3 is a configuration diagram of a memory of the storage apparatus.
Embodiments will be described with reference to the drawings. The embodiments described below do not limit the invention according to the claims, and all of the elements and combinations thereof described in the embodiments are not necessarily essential to the solution to the problem.
In the following description, information may be described in an expression “AAA table”, however, the information may be expressed by any data structure. That is, the “AAA table” may be referred to as “AAA information” to indicate that the information does not depend on data structure.
In addition, in the following description, a “processor unit” includes one or more processors. At least one processor is typically a central processing unit (CPU). The processor may include a hardware circuit that performs some or all of the processing.