MANAGEMENT SYSTEM AND COMPUTER SYSTEM MANAGEMENT METHOD
First Claim
1. A management system for managing a computer system that comprises a host computer and a storage,wherein the storage provides multiple logical volumes to the host computer by associating each logical page in the respective logical volumes with a physical page of each of multiple storage devices,the management system comprises:
- a microprocessor;
a memory that is used by the microprocessor;
a user interface that is used by the microprocessor; and
a communication interface for the microprocessor to communicate with the host computer and the storage,the memory stores;
first chronological information in which performance measurement values for each of the logical volumes in a predetermined time period including at least a first time period are chronologically arranged, andsecond chronological information in which performance measurement values for each of the logical pages in another predetermined time period including at least a second time period that is later than the first time period are chronologically arranged,the microprocessor outputs, via the user interface, at least any one or both of the first chronological information and the second chronological information stored in the memory, andthe logical page, for which the second chronological information is created, is selected based on a predetermined amount which is computed from the first chronological information and indicates the degree to which the performance measurement value for each of the logical volumes deviates from an average value of the first chronological information.
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Accused Products
Abstract
A management system detects a peak time period during which accesses are concentrated on a logical page included in a logical volume, and reallocates this logical page to an appropriate physical page. A management server detects an access variation of each logical volume, and selects a volume with a large access variation as a target volume. The management server measures the access status of each logical page in the target volume, and allocates a logical page to a more appropriate physical page.
22 Citations
15 Claims
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1. A management system for managing a computer system that comprises a host computer and a storage,
wherein the storage provides multiple logical volumes to the host computer by associating each logical page in the respective logical volumes with a physical page of each of multiple storage devices, the management system comprises: -
a microprocessor; a memory that is used by the microprocessor; a user interface that is used by the microprocessor; and a communication interface for the microprocessor to communicate with the host computer and the storage, the memory stores; first chronological information in which performance measurement values for each of the logical volumes in a predetermined time period including at least a first time period are chronologically arranged, and second chronological information in which performance measurement values for each of the logical pages in another predetermined time period including at least a second time period that is later than the first time period are chronologically arranged, the microprocessor outputs, via the user interface, at least any one or both of the first chronological information and the second chronological information stored in the memory, and the logical page, for which the second chronological information is created, is selected based on a predetermined amount which is computed from the first chronological information and indicates the degree to which the performance measurement value for each of the logical volumes deviates from an average value of the first chronological information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for managing a computer system comprising a host computer, a storage, and a management system,
wherein the storage comprises multiple logical volumes that are provided to the host computer, multiple storage devices each comprising multiple physical pages, and a control part for associating each logical page included in the each logical volume with any one of the physical pages, the computer system management method causing the management system to execute the steps of: -
creating and storing, based on information acquired from the storage, first chronological information in which performance measurement values for each of the logical volumes in a predetermined time period including at least a first time period are chronologically arranged, selecting a measurement-target logical page from among the respective logical pages based on a predetermined amount which is computed from the first chronological information and indicates the degree to which the performance measurement value for each of the logical volumes deviates from an average value of the first chronological information, creating and storing, based on information acquired from the storage, second chronological information in which performance measurement values for the each measurement-target logical volume in another predetermined time period including at least a second time period that is later than the first time period are chronologically arranged, and outputting, via the user interface, at least any one or both of the stored first chronological information and the second chronological information. - View Dependent Claims (11, 12, 13, 14, 15)
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Specification