- Notes, cautions, and warnings
- Additional resources
- Platform Overview
- Technical specifications
- Hardware component descriptions
- Disk-array enclosures
- Cabling
- Rail kits and cables
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Dell Unity™ All Flash and Unity Hybrid Hardware Information Guide
Cabling the first optional DAE to create back-end bus 1
Connect the first optional expansion DAE to port 1 of the DPE to create back-end bus 1 (BE1) and designate this DAE as enclosure 0 of this bus. We refer to the address of this enclosure as BE1 EA0 (1_0).
Prerequisites
To prepare for this cabling task:
- Locate the mini-SAS HD cables to be used to connect to the newly installed expansion DAE.
Typically these cables are 2-meters long. You use longer cables, typically 5-meters or 8-meters, to connect enclosures located in different racks. Cables are shipped without labels attached. The cables and ports are not colored.
- Locate the sheet of cable labels provided.
Orient the cable connectors as described in the procedure that follows, making sure that you do NOT connect:
- A DAE expansion port 0 to another expansion port 0.
- Any A-side ports to B-side ports.
About this task
Use the following illustrations to complete this cabling task:
DPE to 25-drive DAE SAS cabling
DPE to 15-drive DAE SAS cabling
NOTE:When cabling the 15-drive DAE LCC SAS ports, ensure that the cables do not overlap behind the DAE. The illustration above demonstrates the proper method for cabling to the DAE LCC SAS ports.
Steps
- Label a pair of mini-SAS HD cables using the blue labels shown here.
Expansion port cable labeling details Primary port cable labeling details Label part number Label Port Label part number Label Port 046-001-562 
SP A SAS 1 046-021-012 
LCC A Port A 046-003-750 
SP B SAS 1 046-021-013 
LCC B Port A - Connect each SP to the first optional DAE to create BE1 EA0.
NOTE:Neither connector on the mini-SAS HD cable has a symbol to indicate input or output.
- Connect port 1 on SP A in the bottom slot in the DPE to port A on the link control card A (LCC A) at the bottom of the DAE. [
]
- Connect port 1 on SP B in the top slot in the DPE to port A on the link control card (LCC B) at the top of the DAE. [
]
- Connect port 1 on SP A in the bottom slot in the DPE to port A on the link control card A (LCC A) at the bottom of the DAE. [
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