Avamar - How to verify your backup nodes connection speed

I recently suspected one of my storage node was not connected at 1 Gbps, this can be verified quickly from the utility node using the "mapall" and "ethtool" commands.
mappall send a command to all the storages nodes, and ethtool is a linux command.

Here you go :

su - admin

ssh-agent bash

ssh-add ~/.ssh/dpnid

mapall --noerror --user=root 'ethtool eth0' | grep "Speed"

mapall --noerror --user=root 'ethtool eth2' | grep "Speed"

These are the NICs that face your network

To check the internal NICs: 

mapall --noerror --user=root 'ethtool eth1' | grep "Speed"

mapall --noerror --user=root 'ethtool eth3' | grep "Speed"

Now you can verify that the "Speed" fields all say 1000Mb/s.
Mines did not:

(0.0) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.2 'ethtool eth2'
        Speed: 1000Mb/s
(0.1) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.3 'ethtool eth2'
        Speed: 100Mb/s
(0.2) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.4 'ethtool eth2'
        Speed: 100Mb/s
(0.3) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.5 'ethtool eth2'
        Speed: 1000Mb/s
(0.4) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.6 'ethtool eth2'
        Speed: 1000Mb/s
(0.5) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.7 'ethtool eth2'
        Speed: 1000Mb/s
(0.6) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.8 'ethtool eth2'
        Speed: 100Mb/s
(0.7) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.9 'ethtool eth2'
        Speed: 1000Mb/s
(0.8) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.10 'ethtool eth2'
        Speed: 1000Mb/s
(0.9) ssh  -x  -o GSSAPIAuthentication=no root@192.168.255.11 'ethtool eth2'
        Speed: 1000Mb/s


You can then work with support to solve the issue, or check your cables / switchs, etc.