Home > Storage > PowerScale (Isilon) > Product Documentation > Protocols > Dell Multipath Client Driver: Installation and Configuration Guide > Ubuntu 20.04
On Ubuntu 20.04, NFSv3 and NFSv4.1 are both fully-featured. In addition, the ‘remoteports’ behavior is more obvious with NFSv4.1 because the client state is tracked:
# mount -t nfs -o vers=4.1,nconnect=8,remoteports=10.231.180.95-10.231.180.98 10.231.180.95:/ifs /mnt/test
And from the cluster:
cluster# isi_for_array 'isi_nfs4mgmt'
ID Vers Conn SessionId Client Address Port O-Owners Opens Handles L-Owners
2685351452398170437 4.1 tcp 5 10.219.57.229 872 0 0 0 0
5880148330078271256 4.1 tcp 11 10.219.57.229 680 0 0 0 0
2685351452398170437 4.1 tcp 5 10.219.57.229 872 0 0 0 0
6230063502872509892 4.1 tcp 1 10.219.57.229 895 0 0 0 0
6786883841029053972 4.1 tcp 1 10.219.57.229 756 0 0 0 0
With a single mount, the client has created many connections across the server.
This also works with RDMA:
# mount -t nfs -o vers=4.1,proto=rdma,nconnect=4 10.231.180.95:/ifs /mnt/test
isi_for_array 'isi_nfs4mgmt’
ID Vers Conn SessionId ClientAddress Port O-Owners Opens Handles L-Owners
6786883841029053974 4.1 rdma 2 10.219.57.229 54807 0 0 0 0
6230063502872509894 4.1 rdma 2 10.219.57.229 34194 0 0 0 0
5880148330078271258 4.1 rdma 12 10.219.57.229 43462 0 0 0 0
2685351452398170443 4.1 rdma 8 10.219.57.229 57401 0 0 0 0