ONTAP Discussions

Strange NFS mount issue


Hi All,


We are having strange issue with our NFS mount points. We havd FAS2240-4 running 8.2.4P6 7-Mode in HA. And NFS clients are Suse 11.4 x64. Below is issue description.

Mount points of filer 1 are getting stalled on both Suse clients while mount points of filer 2 are running fine on both Suse Clients. After mount points are stalled , i need to remount the mount points of filer 1 again and while doing so i am getting below RPC timed out error and it is getting mounted through UDP. But after doing some read operations it is getting stalled again. But if i have taken a reboot of filer1 it is getting mounted without RPC timed out error. But after some read operations it is getting stalled again. 


mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Mon Nov 27 16:09:32 2017
mount.nfs: trying text-based options 'addr='
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying prog 100003 vers 3 prot TCP port 2049
mount.nfs: portmap query retrying: RPC: Timed out
mount.nfs: prog 100003, trying vers=3, prot=17
mount.nfs: trying prog 100003 vers 3 prot UDP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying prog 100005 vers 3 prot UDP port 4046 on /mnt type nfs (rw)


I have already check the firewall and there is no firewall between Suse clients and filer 1 . Also telnet is working on NFS ports 2049 and others ports. 




You could try takeover of node1 (node2 active, node1 down) for some time and if the error persists, there is a configuration issue with node1. If Node2 works fine while in takeover, that means most probably there is a physical network issue. Could be a NIC port of node1, a faulty cable or switch port etc. Do you see any errors in "ifstat" output ? 

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