STORAGE SYSTEM AND POWER CONSUMPTION REDUCTION METHOD FOR THE SAME
First Claim
1. A storage system, comprising:
- a storage apparatus;
a computer that includes a file system controller for storing a file in the storage apparatus and a virtual file server; and
a power management computer that includes a first shift controller;
wherein the first shift controller refers to a load on the computer, and when the load on the computer is low, the first shift controller stops the virtual file server or performs failover for the virtual file server, and reduces the storage apparatus and the computer to a power-off state or a low power consumption state.
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Accused Products
Abstract
In a storage system that includes two or more file servers each including an arbitrary number of operating virtual file servers, a management server: holds a load information table regarding a load on each virtual file server for each time period and redundancy information table for the storage system; judges, with reference to the load information table and redundancy information table, whether or not the loads on the virtual file servers can be handled by a smaller number of file servers than the number of currently-operating file servers; selects, if the judgment result is positive, a power-off target file server and makes another file server fail over a virtual file server in the power-off target file server; and turns off the power-off target file server.
48 Citations
18 Claims
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1. A storage system, comprising:
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a storage apparatus; a computer that includes a file system controller for storing a file in the storage apparatus and a virtual file server; and a power management computer that includes a first shift controller; wherein the first shift controller refers to a load on the computer, and when the load on the computer is low, the first shift controller stops the virtual file server or performs failover for the virtual file server, and reduces the storage apparatus and the computer to a power-off state or a low power consumption state. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power management computer coupled to storage apparatuses and a computer which stores a file in the storage apparatuses, the power management computer comprising:
a first shift controller which refers to a load on the computer, and when the load on the computer is low, the first shift controller stops the virtual file server or performs failover for the virtual file server, and reduces the storage apparatus and the computer to a power-off state or a low power consumption state. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A power consumption reduction method for a storage system, wherein the storage system includes a storage apparatus, a computer that includes a controller for storing a file in the storage apparatus and a virtual file server, and a power management computer that controls the storage apparatus and the computer, the power consumption reduction method comprising the steps of:
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referring to a load on the computer; and when the load on the computer is low, stopping the virtual file server or performing failover for the virtual file server; and reducing the storage apparatus and the computer to a power-off state or a low power consumption state. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification