VIFS on NetApp

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 ?