Hitachi, Ltd.

Shigeki Arata

Takashi Tameshige

Yoshifumi Takamoto

Yuri Hiraiwa

Tomohito Uchida

Yutaka Tawara

A management system includes an interface device coupled to a computer system including a plurality of resources including resources of a plurality of resource types and a processor coupled to the interface device. The processor allocates, to a tenant environment, a resource of a resource type, which is different depending on an XaaS (X as a Service), among the plurality of resources including resources of a plurality of resource types and provides a plurality of tenant environments including a plurality of XaaSs. The processor manages, as low-order resources, resources lower in order than the resources allocated to the tenant environments, among the plurality of resources including resources of a plurality of resource types. When receiving a resource change request, the processor executes change processing on at least one of the low-order resources among the resources managed as low-order resources.

Management system for computer system

An exemplary management system stores computer performance management information, I/O performance management information regarding communication by I/O adapters, and priority management information associating a priority of a failover destination pair candidate including failover destination computer and destination I/O adapter candidates with a relationship between a failover source computer and destination computer candidate and with an I/O performance relationship between failover source and destination I/O adapter candidates. The management system determines failover destination pair candidates, each including failover destination computer and I/O adapter candidates. The management system determines a priority of each failover destination pair candidates with reference to the computer and I/O performance management information, and the priority management information based on a performance relationship between the active computer and the failover destination computer candidate and on a performance relationship between the active I/O adapter and the failover destination I/O adapter candidate.

Management system for managing computer system, method for managing computer system, and storage medium

In a computer system including server apparatuses such as an active server and a standby server connected to a storage apparatus, when the active server fails, a management server changes over connection to the storage apparatus from the active server to standby server to thereby hand over operation to the standby server. The management server refers to a fail-over strategy table in which apparatus information of the server apparatuses is associated with fail-over methods to select fail-over strategy in consideration of apparatus information of the active and standby servers.

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Tokyo, Japan

Shigeki Arata