topic Redundant Controller Question in ONTAP Hardware

Redundant Controller Question

fairbanksf — Thu, 05 Jun 2025 06:31:59 GMT

I'm trying to configure a FAS2040 with dual controllers that hold 4 network ports each.

I've enabled controller failover with the "cf enable" command. And I've configured multi-mode/IP load balacing on the one controller. My question is how do I configure the network interfaces on the 2nd controller to take over if the first controller fails? Or will this all happen automatically and all I need to do is plug 4 network cables into the 2nd controller. I don't see a second controller anywhere in the web gui and I'm digging through troves of documentation without much luck.

Thanks!

Re: Redundant Controller Question

aborzenkov — Tue, 20 Mar 2012 03:25:08 GMT

Ifconfig my-if partner partner-if

Re: Redundant Controller Question

MADHAVARAJU — Fri, 26 Apr 2013 19:52:22 GMT

You can also do by "setup" command , While setting up the initial configuration it will ask for partner vif name for failover purpose ( refer below )

should interface vif01(primary virtual interface name) takeover a partner IP address during failover ? : yes

Please enter the partner virtual interface name to be taken over by vif01 (primary virtual interface name) : (give the partner virtual interface name)

you need to change this values in both the controllers

There will be separate IP for second controller , you need to log in through that IP