Dual-path configuration
Single-path configuration
1. Mount the new expansion unit on the rack.
2. Install the drives in the new expansion unit.
3. If you are using a dual-path configuration, disconnect the loop cables from the SAS ports on the last
expansion unit.
Loop cables are the SAS cables that you use to connect the last expansion unit back to the NAS.
4. Using the two new SAS cables, connect the last expansion unit to the new expansion unit.
5. If you are using a dual-path configuration, connect the loop cables to the new expansion unit.
6. Connect the power cables to the new expansion unit.
7. Power on the new expansion unit.
ES1686dc User Guide
Installation and Configuration 40