Hi all again.
I still trying analyze what going on with NFS server-client communication...
Below output from # tcpdump -i eth1 -n host 10.111.69.81 (to see what going on between NFS server and client as reaction to mount -t nfs 10.111.69.81:/raid1/ARGUS /mnt/datanas)
[root@jaguar etc]# tcpdump...