topic Re: Nimble mgmt IP address in Array Setup and Networking

Nimble mgmt IP address

JimBob7 — Sat, 12 Jun 2021 23:38:26 GMT

When I configure the mgmt IP via serial connection to the array, does it come online only to eth0a and never goes over to eth0b on the active controller say if eth0a was cable unplugged?

During failover to other controller, mgmt goes only to eth0a on that controller?

Re: Nimble mgmt IP address

Sheldon Smith — Sun, 13 Jun 2021 14:47:09 GMT

Having all four eth0 ports connected is a best practice. Best best practice (is there such a thing?) is to have the "a" ports connected to one switch, the "b" ports connected to a second.

When the active management link fails, the management IP will move to an alternate. It will first attempt to switch between ports on the active controller. Only if there are no working links on the active controller and there is a working link on the standby controller will the system switch over.

You can configure any port to any subnet.

When the system is being set up, the eth0a port will be assigned to the management subnet. Once you have the rest of the array configured and the GUI is available for general administrative use, the Hardware page will show which ports are green (good) or red (a problem) or gray (not yet configured). If you need to, edit the active network setup. You should add the eth0b ports to the management subnet.

There is probably a YouTube video on configuring the Nimble network.

And there's always Nimble Support ready and waiting for a call.

Re: Nimble mgmt IP address

basti998874 — Fri, 07 Oct 2022 11:57:18 GMT

Question related to those eth0 management ports:
what will happen when all of them are unplugged at once or the so there can't be any failover because of better connectivity?

Will the Nimble Storage work as usual, and only the Management Webpage will be unavailable?

Re: Nimble mgmt IP address

Sheldon Smith — Tue, 11 Oct 2022 00:10:55 GMT

Exactly.

Re: Nimble mgmt IP address

CC19 — Fri, 11 Jul 2025 22:16:09 GMT

May I know the purpose to set up secondary management IP address in Nimble as long as it will first attempt to switch between ports on the active controller and then standby controller. Thank you.

Re: Nimble mgmt IP address

buzzsubash — Sat, 12 Jul 2025 02:42:42 GMT

Hello @CC19
Secondary IP is relevant and useful only when there is a second array in the group. When two arrays are merged, the UI is accessed over the primary Mgt IP, AKA, the group leader array, which will let you manage both arrays.

A secondary IP can also allow you to access the second array in the group.