Dell Unity XT 480 Unity All Flash and Unity Hybrid Unity 480/F Unity 680/F Uni - Page 30

Cabling the second optional DAE to create back-end bus 0, Cabling an expansion DAE to an existing

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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 AB BA 1 0 0 1 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

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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
B
A
A
B
1 0
0 1
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