Vifs (Virtual interfaces) are used for multi-homing and load balancing A Single mode vif is for failovers only
Multi-mode vif is for load balancing
You can use a combination of multi-mode and single mode to be fully redundant and load balanced.
For more information on VIFS please check the NetApp now site.
Note: as of OnTap 7.2.3. there is a bug in Filerview with vifs and interfaces DO NOT modify interfaces or vifs using Filerview use command line and edit RC and hosts files to preserve settings.
To create a single mode vif
vif create single sample-vif0 e0a e0c
To configure an interface to use a vif
ifconfig sample-vif0 `hostname`-pub mediatype auto netmask 255.255.255.0 wins partner cluster-vif0
Make sure you reference the vif name not the interface name
To view all interfaces including vifs Ifconfig –a
To view a single interface or vif (note you must view the vif in order to see ip address)
Ifconfig sample e0a
Ifconfig sample-vif0
To view all vifs status vif status
To view single vif
vif status sample-vif0
To view statistics
vif stat sample-vif0
If you need to remove an interface from a vif
vif delete sample-vif0 e0c (This will remove e0c from sample-vif0)
To favor one interface in a VIF (this always be the one that’s used if up, if it ever goes down and then comes back up it will fail back to it)
vif favor e0a
To see more commands type the following at a command prompt. Vif ?