topic Re: Failover ISCSI Cluster in ONTAP Discussions

Failover ISCSI Cluster

kal — Wed, 04 Jun 2025 20:23:15 GMT

Hi,

I have a filer which is connected in ISCSI to a Hyper-Cluster.

Each node of Hyper-V has one NIC, in LAN which can join de ISCSI's filer.

When I launch a manual Takeover on Netapp, the cluster loose the ISCSI and the Virtual Machines shutdown. It doesn't reconnect to the ISCSI.

I also have a second ISCSI connected to an other server which contains data. When I run a takeover, the ISCSI shutdown but it reconnects after 40 seconds. It seems that the issue appears only for Hyper-V clusters.

My Luns's type are "Windows 2008 or later".

Have you an idea ?

Best regards.

Re: Failover ISCSI Cluster

Sahana — Thu, 23 Jun 2016 04:33:29 GMT

Hi,

Refer KB 2021967 SVM does not provide iSCSI LUN after failover.(requires login)

Re: Failover ISCSI Cluster

kal — Fri, 24 Jun 2016 07:25:53 GMT

Hi,

I followed this KB (Page 21) but I see only one target. I can't follow the step 8 : https://library.netapp.com/ecm/ecm_download_file/ECMP1287600

Do you have an idea ?

Regards.

Re: Failover ISCSI Cluster

Sahana — Fri, 24 Jun 2016 09:18:08 GMT

Hi,

It means that there are no multiple paths to the storage. Please check your network connections and LIF settings.Refer page 7 on the same link.

Re: Failover ISCSI Cluster

kal — Fri, 24 Jun 2016 09:22:47 GMT

Hi,

I see that each SVM has 4 lifs with differents IP :

What's more, when I check the protocols in ISCSI configuration of the SVM, there's 4 lifs :

Re: Failover ISCSI Cluster

DaemonFF — Tue, 28 Jun 2016 18:53:03 GMT

You must set up MPIO from server side.

You can read about for example here: https://blogs.technet.microsoft.com/keithmayer/2013/03/12/step-by-step-speaking-iscsi-with-windows-server-2012-and-hyper-v-become-a-virtualization-expert-in-20-days-part-7-of-20/

Re: Failover ISCSI Cluster

kal — Mon, 04 Jul 2016 08:45:16 GMT

Hi,

Do I have to follow these steps ? : https://www.youtube.com/watch?v=vVAir7tUZK8

Regards.

Re: Failover ISCSI Cluster

kal — Fri, 08 Jul 2016 09:04:09 GMT

Hi,

I've just installed the Windows Host Utilities an everything is Ok.