[JDSS] Low performance with Intel X710/XL710/X722

Additional information:

• product name: JovianDSS
• product version: up27 and all lower
• build: all

Problem:

Performance around 6Mbits on Intel X710/XL710/X722 SFP 10Gbps NICs (tested with bond LACP - which is not advised in JovianDSS, tested with MPIO).

Symptoms:

Below error visible in the JovianDSS LOGS - kernel-sys.log:

Jun  7 15:30:38 [kern.err] [   32.372709] Non-contiguous TC - Disabling DCB

Solution:

Disable DCB/DCBX for all X710/XL710/X722 NICs on the server/hardware side (BIOS/management).