Patent ID: 8400893
Filing Date: 2013-03-19
Classification: G06F,Y02D

Abstract:
1. A storage apparatus which includes one or more disk drives and performs an I/O process of data stored in the disk drives in accordance with an I/O process request from one or more host computers, comprising: a control unit which calculates power consumption of the disk drives varying with the I/O process on the basis of power information necessary for the I/O process which is stored on the disk drives and an operation rate which is a ratio of time necessary for the I/O process per predetermined unit time; and a display unit which displays the power consumption calculated by the control unit, wherein the control unit measures an issuing time at which the control unit issues the I/O process to the disk drives and a receiving time at which the control unit receives response of the I/O process from the disk drives, and calculates a time necessary for the I/O process based on a difference between the issuing time and the receiving time, wherein the I/O process includes several type of I/O processes including random read, random write, sequential read, and/or sequential write, wherein the power information includes power information with respect to each type of I/O process, wherein the control unit distinguishes the type of I/O process, and measures the issuing time with respect to each type of I/O process, and the receiving time with respect to each type of the I/O process, and calculates the time necessary for the I/O process with respect to each type of the I/O process on the basis of the issuing time with respect to each type of I/O process, and the receiving time with respect to each type of the I/O process, and calculates an operation rate with respect to each type of the I/O process on the basis of the time necessary for the I/O process with respect to each type of the I/O process and a predetermined unit time, and calculates the power consumption with respect to each type of I/O process on the basis of the power information with respect to each type of I/O process, and the operation rate.