Patent ID: 8667220
Filing Date: 2014-03-04
Classification: G06F

Abstract:
1. A management apparatus for managing a computer system equipped with a storage apparatus for providing a logical volume to a host computer, and a cache apparatus, which is used by the host computer, wherein a portion of data stored in a storage area of a prescribed size in the logical volume is stored in the cache apparatus as cache data, the management apparatus comprising: a microprocessor; a storage device for storing a prescribed computer program to be used by the microprocessor; and a communication interface circuit for communicating with the host computer and the storage apparatus, wherein, by executing the prescribed computer program, the microprocessor: detects a first access request by the host computer with respect to data of the storage area in the logical volume; detects a second access request by the host computer with respect to the cache data in the cache apparatus; detects a corresponding relationship between the data of the storage area in the logical volume and the cache data of the cache apparatus; and computes the total number of access requests with respect to the data of the storage area based on the first access request and the second access request.