The following figure shows a subset of the supported configurations for Oracle ZFS Storage 7120 standalone controllers with one HBA. To cable the controller to the disk shelves, see Getting Started with Cabling.
Using mixed disk shelves on a 7120 controller requires the following:
The controller must use only 2X4 port SAS-2 HBAs
Mixed disk shelves in the same chain must not exceed a chain depth of two
Figure 589 Standalone 7120 controller with one HBA connected to two mixed disk shelves in a single chain (DE2-24 shown on top)