Help configuring HBA SAS Card - Network fails when HBA card is inserted

[shaftandspanner]

Hi all,

I've been trying to add additional hard drives to my proxmox server (beyond the number of SATA ports on my mother board. After learning that cheap pcie adaptors from AliExpress aren't going to help me, I purchased a LSI 9223-8i IT Mode HBA SAS SATA 6Gbps card from Ebay. The actual card I purchased is here: https://www.ebay.co.uk/itm/304168971602.

I've put this card in my server, but on boot I immediately found that I couldn't connect to the box over the nextwork. Local login works fine and all my VMs / LXCs appear to be running, but I now have no network access from the box - I've tried inserting the card in a 2nd PCIe slot and have disconnected the actual drives but get the same result.

`ip addr` includes the following line:

`inet 192.168.0.200/24 scope global vmbr0`

The 192.168.0.200 is the fixed IP of my proxmox box but when I check in my router, this address isn't being used.

As soon as the server is rebooted with the card removed, everything connects and works as it should.

TBH I'm out of my depth with this so any pointers on what to check would be very much appreciated. I haven't changed anything in the bios or configuration and proxmox is working fine without the card.

 

[leesteken]

This is very common (but hard to find on the forum until you know what it is). The name of the network devices depends on the PCI ID. When you add (or remove or enable or disable) PCI(e) devices, the PCI ID of other devices (typically with higher numbers) can change (usually by 1). Use ip a to find the new network device name and adjust /etc/network/interfaces accordingly.

EDIT: For example https://forum.proxmox.com/threads/network-fail-after-new-card.148137/post-669788

 

[shaftandspanner]

That worked perfectly, many thanks!

For completeness, my network device was on enp2s0. After inserting the HBA card, my network device was then on enp3s0. I changed the two instances of this in /etc/network/interfaces, rebooted and now I have network connectivity back.