SMB Multichannel not listening on all SMB interfaces

Share this post:

Hello

So i noticed on our Dataon S2D cluster that not all interfaces had a SMB Listener.

You can get the output for that from Netstat -xan

You will see something like this

Kernel    11 Listener 10.0.0.10:445 NA   0

If you have 2 interfaces it should be like

Kernel    11 Listener 10.0.0.10:445 NA   0
Kernel    11 Listener 10.0.1.10:445 NA   0

What i did was i disabled the interface that did not have a listener and enabled it again and suddenly i had 2 interfaces when i run netstat -xan.

This is either a bug related to bootup or something with SMB binding. Il update this post as soon as i have something to share about this. But for now after a reboot i will need to disable the interface and enable it again.

Update

It’s confirmed by 2 sources that it’s a known issue. It’s a NIC driver, Windows Server missmatch. I will try and get an update on this as soon as possible.

Subscribe to our newsletter

Get the inside scoop! Sign up for our newsletter to stay in the know with all the latest news and updates.

Don’t forget to share this post!

2 thoughts on “SMB Multichannel not listening on all SMB interfaces”

  1. Hi Jan-Tore, thx for bringing this up to the public. I am experiencing the same issue with Mlx adapters. Not sure if this is related to the Hardware/Driver or a Microsoft issue. Do you have any update on this? thx, Gerold

    1. As off now i have not heard anything back about the issue. But i did setup a new cluster in april and i did not have any issues there. But that was with Mellanox ConnectX3 cards and not ConnectX4 cards. But the cluster with the issue has not been rebooted for a while. Im going to patch it once im back from holiday.

      Il update this post if i find anything new.

      JT

Leave a Comment

Scroll to Top