The following figures show a subset of the supported configurations for Oracle ZFS Storage 7420 standalone controllers with two HBAs. To cable the controller to the disk shelves, see Getting Started with Cabling.
Figure 305 Standalone 7420 controller with two HBAs connected to one DE2-24 disk shelf in a single chain
Figure 306 Standalone 7420 controller with two HBAs connected to two DE2-24 disk shelves in two chains
Figure 307 Standalone 7420 controller with two HBAs connected to four DE2-24 disk shelves in two chains
Figure 308 Standalone 7420 controller with two HBAs connected to 12 DE2-24 disk shelves in two chains
Figure 309 Multiple disk shelves in a single chain