Storage system management apparatus and management method

摘要

The present invention is provided to make effective use of a storage area, and to enhance user usability. A management apparatus determines a reallocation destination of each logical storage area on the basis of an access load on each logical storage area by a host computer and an allocation status of each logical storage area in a storage-destination storage tier. A monitoring mode selection part for selecting any one of multiple monitoring modes selects a prescribed monitoring mode from the multiple monitoring modes on the basis of allocation time information related to a time at which each logical storage area is allocated to an allocation-destination storage tier.

主权项

1. A storage system management apparatus for managing a storage system, the storage system including a pool comprising storage tiers with respectively different performances, and a virtual logical volume formed by logical storage areas, to be provided to a host computer, and configured to allocate a logical storage area to an instructed prescribed storage tier of the storage tiers, the storage system management apparatus comprising:
a non-transient memory storing a storage management program, and a processing unit configured to execute the storage management program to:
(1) collect prescribed information from the storage system;(2) produce an evaluation of an access load for each of the logical storage areas based on the prescribed information;(3) calculate allocation time information, which is a ratio between a time at which each of the logical storage areas is allocated to a highest performance storage tier and a prescribed allocation reference period;(4) determine a storage tier for each of the logical storage areas based on the access load of the logical storage areas and the allocation time information; and(5) provide a reallocation instruction to the storage system based on a result of the determining of the storage tier.