NFS Vol Move

[Greenday75]

We are in the process of moving NFS vols off our FAS8080s to our A700 nodes withing the same cluster. Once we have moved the NFS off the FAS8080s we will un-join those nodes from the cluster. My question is the hosts using NFS are currently mounted on the LIF which will soon be gone. Am I right in assuming we need to migrate the LIF to the A700? If so, we already have a LIF on that A700 node serving NFS, is that going to be an issue and can the LIF share the same port? The other option would be to un-mount and re-mount the NFS storage to the LIF on the A700 but that is the last case scenario. 

[Ontapforrum · Accepted solution]

Just do the LIFs migration, once the vol is moved.

All the 3 steps are NDU:
1) Vol move.
2) LIF migrate.
3) Modify the Home-node & Home-port of the migrated LIFs (This is to ensure when the LIF is bounced for any reason, it will be assigned to its new node and port).

Yes, multiple LIFs can be placed on the same port (Just that you do not want to put additional load on a VLAN/ifgrp/Port that is already serving too many requests, all depends on the usage on that Port, otherwise it should be fine)

Steps:
https://docs.netapp.com/us-en/ontap-systems-upgrade/upgrade-arl-manual/move_nas_lifs_node1_node2.html#:~:text=Migrate%20the%20LIFs%20hosted%20on%20any...

[EWILTS_SAS]

This is a routine operation for us and we're in the middle of one now.  You can have many LIFs per physical port - we typically aim for at least as many LIFs as there are physical cables.  e.g. if you have a 2-port port channel going to each of 2 front-end switches, create at least 4 LIFs on that node.  That allows some of the MAC-based load balancing to work efficiently.

We have several dozen LIFs per node since we have multiple SVMs all serving data.

We never re-mount except during annual maintenance weekends.