Patent ID: 7836349
Filing Date: 2010-11-16
Classification: G06F,G11B,Y02D

Abstract:
1. A storage control device having a plurality of enclosures, comprising: a first enclosure for inputting and outputting data to and from a storage device in accordance with an access request from a higher-level device; one or more second enclosure each comprising the storage device and operating in accordance with an instruction from the first enclosure; an inter-enclosure connection switch that switch-connects the first enclosure and each of the second enclosures; and a power supply circuit section that supplies power individually to the first enclosure, each of the second enclosures, and the inter-enclosure connection switch respectively, wherein the first enclosure comprises an upper communication section for communicating with the higher-level device; a lower communication section for communicating with each of the second enclosures via the inter-enclosure connection switch; a constitution information management section that manages information relating to the constitution of the first enclosure and each of the second enclosures; a power control section that uses the constitution information to control a start or stoppage of the power to each of the second enclosures or the inter-enclosure connection switch; and a fault diagnosis section that detects and diagnoses a fault relating to communication between the lower communication section and each of the second enclosures.