HP A7533A HP StorageWorks Fabric OS 6.1.1 administrator guide (5697-0235, Dece - Page 232

CP blades The 4/256 Director supports the CP4 blade. The DC Director supports the CP8 blade. Mixed CP blades are not supported on a single chassis, except during specific upgrade procedures detailed in the HP StorageWorks SAN Director hardware reference manual. CP4 and CP8 blades cannot be mixed in the same chassis under any circumstances. HP recommends that each Director have only one type of CP blade installed and that each CP (primary and secondary partition) maintains the same firmware version. Core blades The DC Director supports two CR8 core blades. This blade is used for intra-chassis switching as well as ICL connectivity to another DC Director chassis. The 4/256 Director does not support core blades. Port blade compatibility Table 65 identifies which port blades are supported for each Director. 232 Configuring Directors