It would seem your host can't resolve the ip address for the server FQDN
listed for the NFS server.
You should fix the DNS problem or try mounting via ip address once you're
sure that it is reachable from the server.


On Thu, Sep 10, 2020 at 12:33 PM <[email protected]> wrote:

> MainProcess|jsonrpc/4::DEBUG::2020-09-10
> 18:14:39,299::commands::211::root::(execCmd) /usr/bin/taskset --cpu-list
> 0-7 /usr/bin/mount -t nfs -o soft,nosharecache,timeo=100,retrans=3,nolock
> storage.world.co.za:/export/nfs/data
> /rhev/data-center/mnt/storage.world.co.za:_export_nfs_data (cwd None)
> MainProcess|jsonrpc/4::DEBUG::2020-09-10
> 18:14:39,310::commands::224::root::(execCmd) FAILED: <err> = b'mount.nfs:
> Failed to resolve server storage.world.co.za: Name or service not
> known\n'; <rc> = 32
> MainProcess|jsonrpc/4::ERROR::2020-09-10
> 18:14:39,310::supervdsm_server::97::SuperVdsm.ServerCallback::(wrapper)
> Error in mount
> Traceback (most recent call last):
>   File "/usr/lib/python3.6/site-packages/vdsm/supervdsm_server.py", line
> 95, in wrapper
>     res = func(*args, **kwargs)
>   File "/usr/lib/python3.6/site-packages/vdsm/supervdsm_server.py", line
> 133, in mount
>     cgroup=cgroup)
>   File "/usr/lib/python3.6/site-packages/vdsm/storage/mount.py", line 280,
> in _mount
>     _runcmd(cmd)
>   File "/usr/lib/python3.6/site-packages/vdsm/storage/mount.py", line 308,
> in _runcmd
>     raise MountError(cmd, rc, out, err)
> vdsm.storage.mount.MountError: Command ['/usr/bin/mount', '-t', 'nfs',
> '-o', 'soft,nosharecache,timeo=100,retrans=3,nolock', 
> 'storage.world.co.za:/export/nfs/data',
> '/rhev/data-center/mnt/storage.world.co.za:_export_nfs_data'] failed with
> rc=32 out=b'' err=b'mount.nfs: Failed to resolve server
> storage.world.co.za: Name or service not known\n'
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