How a small difference in NFS can cause sleepless night

Setting up NFS to share to non-AIX hosts

I wanted to setup NFS between AIX and non-AIX systems using NFS. being more familiar with NFS setup in Solaris and Linux, i thought setup would be a breeze.

what went wrong

AIX is very strict on who can access the partition, i.e. root. Otherwise, even though the NFS share is created but you will not be able to mount the partition from the other hosts.

Also ensure that both NFS server and client can use the same security protocol, otherwise the result is same as above. As the NFSv3 is the more commonly used protocol, it is recommended for the current setup.

Lastly, put in explicitly who can read-write or read-only to control access.