Hi there. We just bought a new cluster with 8790 HDR switch recently, and I wanted to integrate the old cluster as well. Since the nodes of the old clusters are connected to a 6025 FDR switch, so I just connected the two switches with two EDR cables. Everything else was fine, but iblinkinfo suggests that the connection between two switches are just 10Gb
24 35 ==( 4X 2.5 Gbps Active/ LinkUp)==> 11 79 “Quantum Mellanox Technologies” ( Could be 14.0625 Gbps)
24 36 ==( 4X 2.5 Gbps Active/ LinkUp)==> 11 77 “Quantum Mellanox Technologies” ( Could be 14.0625 Gbps)
ibdiagnet also suggests following error:
Speed / Width checks
-I- Link Speed Check (Compare to supported link speed)
-E- Links Speed Check finished with errors
-E- Link: Sec0d9a03002c89b0/Nec0d9a03002c89b0/P35<–>Sb8599f0300c66f52/Nb8599f0300c66f52/P40 (79) - Unexpected actual link speed 2.5 (enable_speed1=“2.5 or 5 or 10 or 14 or FDR10”, enable_speed2=“2.5 or 10 or 25 or 50” therefore final speed should be 10)
-E- Link: Sec0d9a03002c89b0/Nec0d9a03002c89b0/P36<–>Sb8599f0300c66f52/Nb8599f0300c66f52/P39 (77) - Unexpected actual link speed 2.5 (enable_speed1=“2.5 or 5 or 10 or 14 or FDR10”, enable_speed2=“2.5 or 10 or 25 or 50” therefore final speed should be 10)
Did I miss anything? Thanks in advance.