You can connect end devices to each other through direct cable connections and through backplane connections. When you use one Adaptec 1045 more expander devices see page 54you can create large configurations. The figure on page 20 shows an example of direct-attach connections. Adaptec SAS HBA Compatibility with Backup Exe - VOX The number of direct-connected disk drives is limited to the number of Adaptec 1045 supported by the SAS controller. There may be multiple phys within a single connector.[…]
