Patent ID: 7359186

Claim:
A storage subsystem that is connected to an external device, comprising: a plurality of enclosures each of which has a drawer slideable in a depth direction of a horizontal plane therein and thereout, each drawer including a plurality of slots for inserting upright therein a storage device such that a plurality of storage devices are arranged in a matrix with M columns of storage devices in a width direction of the horizontal plane and N rows of storage devices in the depth direction; and a control device that is connected to the external device, controls communications between the plurality of storage devices and the external device, and sends information to the external device to display a corresponding relationship between logical volumes and physical positions of the storage devices in each enclosure, each logical volume being a logical storage device formed on one or more of the storage devices, wherein each of the storage devices is inserted or removed after the respective drawer is pulled out from the respective enclosure, and when one of the storage devices is damaged, the control device sends to the external device information of a corresponding relationship between a physical position of the damaged storage device in a respective enclosure and a logical volume to display the corresponding relationship wherein the plurality of storage devices includes a low-heat storage device that emits heat by consuming first electrical power and a high-heat storage device that emits heat that is of a higher temperature than the heat of the low-heat storage device by consuming second electrical power, the storage subsystem further comprises: a cooling portion that causes a gas for cooling the storage devices arranged on a storage device arrangement portion to flow to the storage device arrangement portion, and the storage device arrangement portion is constituted such that the low-heat storage device is disposed upstream in the direction in which the gas flows and the high-heat storage device is disposed downstream in the direction in which the gas flows.