[lustre-discuss] Lustre 2.15.5 in a Virtual Machine

[Michael DiDomenico]

lustre in a vm certainly works as i have many running under vmware and
mounting lustre

but i'm a little confused on your message.  are you trying to bind the
lustre client via infiniband or tcp/ip?  if the later (assumed based
on the ens nic prefix), you need to use the ksocklnd not the kiblnd
module


On Thu, Oct 24, 2024 at 3:17 AM Sid Young <sid.young at gmail.com> wrote:
>
> G'Day all,
>
> I'm trying to get lustre to bind to a 100G Mellanox card shared between VM's but it fails with the following errors in dmeg:
>
> [  406.474952] Lustre: Lustre: Build Version: 2.15.5
> [  406.604652] LNetError: 92384:0:(o2iblnd.c:2838:kiblnd_dev_failover()) Failed to bind ens224:10.140.93.72 to device(0000000000000000): -19
> [  406.604704] LNetError: 92384:0:(o2iblnd.c:3355:kiblnd_startup()) ko2iblnd: Can't initialize device: rc = -19
> [  407.655888] LNetError: 105-4: Error -100 starting up LNI o2ib
> [  407.656729] LustreError: 92384:0:(events.c:639:ptlrpc_init_portals()) network initialisation failed
> [  559.741846] LNetError: 92993:0:(lib-move.c:2255:lnet_handle_find_routed_path()) peer 10.140.93.42 at o2ib has no available nets
> [  594.480161] LNetError: 93225:0:(o2iblnd.c:2838:kiblnd_dev_failover()) Failed to bind ens224:10.140.93.72 to device(0000000000000000): -19
> [  594.480213] LNetError: 93225:0:(o2iblnd.c:3355:kiblnd_startup()) ko2iblnd: Can't initialize device: rc = -19
> [  595.498493] LNetError: 105-4: Error -100 starting up LNI o2ib
> [  707.825127] LNetError: 93691:0:(o2iblnd.c:2838:kiblnd_dev_failover()) Failed to bind ens224:10.140.93.72 to device(0000000000000000): -19
> [  707.825182] LNetError: 93691:0:(o2iblnd.c:3355:kiblnd_startup()) ko2iblnd: Can't initialize device: rc = -19
> [  708.843933] LNetError: 105-4: Error -100 starting up LNI o2ib
> [  789.779769] LNetError: 93930:0:(o2iblnd.c:2838:kiblnd_dev_failover()) Failed to bind ens224:10.140.93.72 to device(0000000000000000): -19
> [  789.779820] LNetError: 93930:0:(o2iblnd.c:3355:kiblnd_startup()) ko2iblnd: Can't initialize device: rc = -19
> [  790.828974] LNetError: 105-4: Error -100 starting up LNI o2ib
> [root at hpc-vm-02 2.15.5]#
>
> The VM has two network interfaces ens192 and ens224 both are operational with TCP traffic.
>
> /etc/modprobe.d/lnet.conf
> options lnet networks="o2ib(ens224) 10.140.93.*"
>
> [root at hpc-vm-02 2.15.5]# lnetctl net add --net o2ib --if ens224
> add:
>     - net:
>           errno: -100
>           descr: "cannot add network: Network is down"
> [root at hpc-vm-02 2.15.5]#
>
>
> Any ideas where I might look?
> Are virtual machines even supported with Lustre
> OS is VMWare 7U3 on HP DL385 with 256 cores and 512GB RAM.
>
>
>
>
> Sid Young
> W: https://off-grid-engineering.com
>
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