[lustre-discuss] lctl ping node28 at o2ib report Input/output error

[Robin Humble]

On Tue, Jun 26, 2018 at 04:05:14PM +0800, yu sun wrote:
>hi all:
>     I want to build a lustre storage system, and I found not all of the
>machine in the same sub-network, and they cant lctl ping with each other.
>the details list as below:
>
>root at ml-storage-ser30.nmg01:~$ lctl list_nids
>10.82.145.2 at o2ib
>root at ml-storage-ser30.nmg01:~$ lctl ping node28 at o2ib
>failed to ping 10.82.143.202 at o2ib: Input/output error
>root at ml-storage-ser30.nmg01:~$

what does 'lctl list_nids' say on node28?
also disable iptables everywhere.

cheers,
robin