Patent ID: 7600072
Filing Date: 2009-10-06
Classification: G06F,H04L

Abstract:
1. A computer system, comprising: a first data storage apparatus; a second data storage apparatus; a host computer that is connected to first data storage apparatus via a network; and a management computer configured to access the first data storage apparatus, the second data storage apparatus, and the host computer, wherein the first data storage apparatus includes structural elements: a first interface that has a first port and is connected to the network; a first processor that is connected to the first interface; a first memory that is connected to the first processor; and a first disk drive, first data storage apparatus provides a virtualized data volume into which data required to be written by the host computer via sending a write request, wherein the second data storage apparatus includes structural elements: a second interface that has a second port and is connected to the network; a second processor that is connected to the second interface; a second memory that is connected to the second processor; and a second disk drive that is configured with a logical data volume thereon to execute therein the write request addressed to the virtualized data volume from the host computer, wherein a first transmission path is routed through the first port and is allocated between the host computer and the virtualized data volume, and a second transmission path is routed through the first port and the second port and is allocated between the virtualized data volume and the logical data volume, wherein upon receiving the write request addressed to the virtualized data volume, the first data storage apparatus transfers data required to be written in the virtualized data volume through the first and second transmission paths to the second data storage apparatus, and without being written in the virtualized data volume, wherein the management computer includes structural elements: a third interface that is connected externally; a third processor that is connected to the third interface; and a third memory that is connected to the third processor, wherein the second data storage apparatus configures a RAID group with a plurality of said second disk drives, and provides the RAID group including the logical data volume, wherein the logical data volume is configured to store data which is required to be written in the virtualized data volume of the first data storage apparatus, wherein the first memory stores a virtualized data volume configuration table, which indicates a logical connection relationship of the structural elements of the first data storage apparatus therein, wherein the second memory stores a logical data volume configuration table, which indicates a logical connection relationship of the structural elements of the second data storage apparatus therein, and wherein the third processor acquires at least one of the virtualized data volume configuration table that is stored in the first memory and the logical data volume configuration table that is stored in the second memory, wherein the third processor specifies the virtualized data volume, the logical data volume, the second disk drive, at least one of the ports of the first and second interfaces, and the RAID group, which are linked into a transmission path of the data required to be written into the virtualized data volume by the host computer, from the structural elements of the first data storage apparatus and the second data storage apparatus on the basis of at least one of the acquired virtualized data volume configuration table and the acquired logical data volume configuration table, wherein the third processor acquires performance data of the specified structural elements, and wherein the third processor outputs the acquired performance data.