AIX NFS Export over a Hypervisor Network
talor 27000411MV Visits (3043)
In a number of situations you would have an NFS filesystem that you would allow a number of hosts root access to. A simple example of this is an NFS mount with all of your install media.
You would then export the filesystem, and specify all the hosts that are allowed root access. In the case of an AIX environemnt I have been working on, I had a number of LPARs on a single system, with a private network setup for backups, and for the LPARs to communicate without going outside of the POWER7 frame.
When I added new LPARs, I didn't want to have to go and update all my NFS exports to allow these new LPARs access to the NFS filesystem.
The easy way to get around this is to export the NFS filesystem to the whole subnet that my private LPAR network is using.
So when I created the export on "lpar1" I included -r '@17
Once that was done, I just mounted it on the subsequent LPAR
Now, if I was to add more LPARs, then there would be no modification required on "lpar1" which is exporting the NFS filesystem. If these are hosts on another frame, or standalone hosts, I could also add individual hosts to allow access, or export to multiple subnets.