| 摘要 |
An apparatus for use in a storage device having at least two clusters (201, 202) each including a disk control device having a plurality of channel controllers (203-206) that send and receive commands and data to and from an upper system, a plurality of disk controllers (207-210) that control disk units, and a cache (220) that temporarily stores data between the upper system and the disk units. The apparatus includes a first bus (211, 212) included in a first cluster. The first bus is connected to the channel controller, the disk controller and the cache of the first cluster. A second bus (213, 214) is included in a second cluster. The second bus is connected to the channel controller, the disk controller and the cache of the second cluster. A common resource is connected to the first bus of the first cluster and the second bus of the second cluster. The common resource includes a specified set of data which is commonly accessible from each of the channel controllers or the disk controllers of the clusters. <IMAGE> |
