This is my first post, I hope it will be usefull for other users in the future.
We are planning an hyperconverged infrastructure using Proxmox+CEPH. We will use MCX354A as NICs with 2x 40Gbe uplink on two different Arista switches.
1) I read that the the -QCBT can be flashed to -FCBT...
From what I see here it could be a cable issue:
I tried to ask FS.com support to change the QSFP firmware using the FS box.
I have flashed a CX354A-QCBT to -FCBT using the guide in this thread. I tried to cross connect the two ports using an FS.com QSFP DAC, but the link is 10Gb, not 40. If I try to set it manually to 40000 with ethtool, it doesn't go up.
Could it be a cable issue?
Querying Mellanox devices...