Huawei OceanStor V3 Series Quick Installation Manual page 15

Scenario 2 Connecting high-density disk enclosures
 Connect two high-density disk enclosures using mini SAS HD electrical cables. The cables must be naturally bent,
and a minimum of 97 mm clearance must be reserved in front of each enclosure for winding cables.
 Common and high-density disk enclosures cannot be connected to one expansion loop.
 Each expansion loop of high-density disk enclosures must be connected to two adjacent ports (excluding ports P1
and P2) of the 12 Gbit/s SAS interface module on a controller enclosure, for example, ports P0 and P1 or ports P2
and P3.
Controller B
Expansion
module B
Controller A
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Controller
enclosure
High-density
disk enclosure 3
Expansion
module A
High-density
disk enclosure 2
High-density
disk enclosure 1