Cabling The Second Optional Dae To Create Back-End Bus 0; Cabling An Expansion Dae To An Existing Dae To Extend A Back-End Bus - Dell EMC Unity All Flash Installation And Service Manual

Cabling the second optional DAE to create back-end
bus 0
Connect the second optional expansion DAE to the DPE expansion port 0 to extend back-end bus 0 (BE0) and designate this
DAE as enclosure 0 of this bus. We refer to the address of this enclosure as BE0 Enclosure 0 (0_0).
About this task
NOTE: When cabling the 15-drive DAE LCC SAS ports, ensure that the cables do not overlap behind the DAE.
Steps
1. Label a pair of mini-SAS HD cables.
2. Connect port 0 on SP A in the bottom slot of the DPE to port A on the link control card (LCC A) in the bottom of the DAE.
3. Connect port 0 on SP B in the top slot of the DPE to port A on the link control card (LCC B) in the top of the DAE.
Example
Figure 23. Cabling a DPE to a second 25-drive DAE
Next steps
If you need to cable more than two optional DAEs, refer to the Unity Installation Guide.
Cabling an expansion DAE to an existing DAE to
extend a back-end bus
Connect the optional expansion DAE to the last installed DAE in the back-end bus to extend to the new DAE.
About this task
NOTE: When cabling the 15-drive DAE LCC SAS ports, ensure that the cables do not overlap behind the DAE.
Steps
1. Label a pair of mini-SAS HD cables.
2. Connect port B on the link control card (LCC A) of the lower-numbered DAE to port A on the link control card (LCC A) of
the higher-numbered DAE.
LCC A is on the lower portion of the DAE.
3. Connect port B on the link control card (LCC B) of the lower-numbered DAE to port A on the link control card (LCC B) of
the higher-numbered DAE.
LCC B is on the upper portion of the DAE.
30 Installation Procedures
A B
B A
0 1
1 0