Hitachi, Ltd.

Hidetaka Sasaki

Hideo Ohata

Motoaki Hirabayashi

Satomi Yahiro

Tomonori Yata

Item values associated with an execution state of a program executed on a computer are collected in detail while suppressing the computer load. When reducing the interval for collecting values of one item to be monitored, the interval for collecting values of items other than that item is increased. If the computer load is increased, an interval of at least one item is increased. Moreover, there is provided an upper limit for the number of items whose intervals can be reduced simultaneously. Moreover, when varying the interval of the item according to the values of the respective items, the interval variation range is varied according to the item state and the computer load.

Method and program for monitoring execution state of program

A management method and management apparatus that can prevent deterioration of response performance of an entire system is suggested. A management method and apparatus for managing a storage apparatus to which a hierarchical pool configuration technique is applied is designed to: select a migration-candidate virtual volume(s) from among virtual volumes to which a page(s) is allocated from a pool constituted from a storage tier(s) whose number of accesses per unit time has reached a performance threshold and whose used capacity has not reached a capacity threshold; select a pool(s) from which a page(s) is allocated to the virtual volume, as a migration source pool; also select a pool(s) constituted from a storage tier whose number of accesses per unit time has not reached the performance threshold, as a migration destination pool; decide a migration candidate pair(s) by combining the migration-candidate virtual volume(s) with the migration destination pool(s); calculate response performance of the entire system before and after migration respectively; and decide a migration candidate pair which is a migration object, based on the calculation result.

Management method and management apparatus

Provided is a computer system including a host computer, a storage system connected to the host computer via a network, and a management computer connected to the host computer and the storage system. The management computer obtains performance information indicating performance of resources contained in at least one of the host computer, the storage system, and the network, and obtains pieces of performance information of the resources in a sequence set based on already obtained performance information. This permits solving a problem of the computer system that, when the amount of performance information to be obtained is large. A long time is necessary for detecting a performance problem based on the performance information and investigating its causes.

Computer system and method for monitoring performance of the computer system

According to the present invention, policies are prepared for a plurality of resources residing in a computer system comprising a storage system for copying data from a copy source volume to a copy target volume, and an evaluation is carried out for an evaluation-target resource of the plurality of resources for determining whether or not to execute a predefined action based on the policy of this evaluation-target resource. A policy corresponding to a resource related to copying of the plurality of resources is determined based on a time period related to the copying.

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Yokohama, Japan

Hidetaka Sasaki