Dell EMC Unity Series - Page 33

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Connect to the 4-port SAS back-end I/O module: To connect the DAE to a BE
port in the SAS I/O module of the storage processor, cable the DAE to the first
available port in the 12-Gb/s SAS I/O module. Use the same port on each storage
processor's SAS I/O module. This SAS I/O module can be used to create back-end
bus 2 through 5, (BE2 through BE5):
Note
The optional back-end 12-Gb/s SAS module is not supported on all Unity storage
systems.
Note
Adding a new 12-Gb/s SAS I/O module requires a coordinated restart of the array.
Refer to Adding an optional I/O module for more information.
a. Label a pair of mini-SAS HD cables using the appropriate labels (black, green,
brown, or blue) shown here.
Back-end bus
and enclosure
number
Cable label
Expansion port cable labeling details Primary port cable labeling details
Label part
number
Label Port Label part
number
Label Port
BE2 enclosure 0
and above - A-
side
046-005-679
SP A A0 PORT 0
046-005-679_xx
SP A A0 PORT 0
SP A A0 PORT 0
SP A A0 PORT 0
SP A A0 PORT
0
046-021-16
LCC A Port A
046-021-016_xx
LCC A Port A
LCC A Port A
LCC A Port A
LCC A Port A
BE2 enclosure 0
and above - B-
side
046-005-718
SP B B0 PORT 0
046-005-718_xx
SP B B0 PORT 0
SP B B0 PORT 0
SP B B0 PORT 0
SP B B0 PORT
0
046-021-017
LCC B Port A
046-021-017_xx
LCC B Port A
LCC B Port A
LCC B Port A
LCC B Port A
BE3 enclosure 0
and above - A-
side
046-005-711
SP A A0 PORT 1
046-005-679_xx
SP A A0 PORT 1
SP A A0 PORT 1
SP A A0 PORT 1
SP A A0 PORT 1 046-021-018
LCC A Port A
046-021-018_xx
LCC A Port A
LCC A Port A
LCC A Port A
LCC A Port A
BE3 enclosure 0
and above - B-
side
046-005-719
SP B B0 PORT 1
046-005-718_xx
SP B B0 PORT 1
SP B B0 PORT 1
SP B B0 PORT 1
SP B B0 PORT 1 046-021-019
LCC B Port A
046-021-019_xx
LCC B Port A
LCC B Port A
LCC B Port A
LCC B Port A
Adding an optional 80-drive DAE
Attaching expansion (back-end) cables to an 80-drive DAE 33