STORAGE APPARATUS AND METHOD FOR CONTROLLING STORAGE APPARATUS HAVING A PLURALITY OF PROCESSOR BOARDS FOR BETTER ACCESS PERFORMANCE

摘要

Provided is a storage apparatus 10 comprising: a channel board 11; a drive board 13; a cache memory 14; a plurality of processor boards 12 that transfer data; and a shared memory 15. In the storage apparatus 10, the channel board 11 stores a frame transfer table 521 containing information indicative of correspondence between the LDEV 172 and each of the processor boards 12, set in accordance with a right of ownership that is a right of access to the LDEV 172 set for each of the processor boards 12. Each of the processor boards 12 stores LDEV control information 524 in a local memory 123, the LDEV control information being information to be referred to by the processor board at the time of access to the LDEV 172 for which the processor board has the right of ownership. The channel board 11 transfers a data frame that forms the received data I/O request, to one of the processor boards 12 corresponding to the LDEV 172 specified from the information contained in the frame by using the frame transfer table 521.