Dell Container Storage Modules (CSM) Family: Failure to register a Kubernetes host on the Unity array

Summary: A Kubernetes host may fail to register on the Unity array due to an IPv6 misconfiguration. This article provides information about this issue and steps to resolve it.

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Symptoms

The Unity CSI node driver fails to register a Kubernetes host on the Unity array. The following errors may be present:

Note: The following log entries are only evident when debug logging is enabled in the CSI driver.

Error #1

time="2024-12-06T01:07:54Z" level=debug arrayid=de400243902703 runid=node-2 msg="Adding iSCSI Initiator: Host_34 to host: iqn.2004-10.com.ubuntu:01:52c55542e014 
time="2024-12-06T01:07:55Z" level=debug  runid=node-2 msg="Adding node [de400243902703] failed, Error: [rpc error: code = Internal desc =  runid= Adding iSCSI initiator error: initiator found (iqn.2004-10.com.ubuntu:01:52c55542e014), and attached to someother host (Host_33) instead of host: Host_34]" func="github.com/dell/csi-unity/service.(*service).syncNodeInfo.func2.1()" file="/go/src/csi-unity/service/node.go:1835"

Error #2

time="2024-12-06T01:07:54Z" level=debug  runid=node-2 msg="Adding node [de400243902703] failed, Error: [[{Invalid IPV6 address fe80::f816:3eff:fe85:895a%ens3. (Error Code:0x7d13115)}]]" func="github.com/dell/csi-unity/service.(*service).syncNodeInfo.func2.1()" file="/go/src/csi-unity/service/node.go:1835"

Error #3

time="2024-12-09T00:59:17Z" level=debug arrayid=de400243902703 runid=node-5 msg="Adding node [de400243902703] failed, Error: [rpc error: code = Internal desc =  runid= Host has got foreign Initiators. Host initiators on the array require correction before proceeding further.]" func="github.com/dell/csi-unity/service.(*service).syncNodeInfo.func2.1()" file="/go/src/csi-unity/service/node.go:1835"

 

Cause

The hosts in the Kubernetes cluster were cloned from a template. Each host has the same iSCSI initiator and a misconfigured IPv6 interface.

 

Resolution

To resolve this issue, perform these steps:

  1. Ensure that the iSCSI qualified name (IQN) for each host is unique. Cloned virtual machines (VMs) may necessary to have the IQN re-generated.
  2. Disable the IPv6 network cards if not in use.
  3. Remove any stale initiators associated with the host being registered which are present on the array
Note: If the event of Kubernetes nodes booting from Unity volumes, host network addresses may already be registered to the Unity and prevent driver registration from completing successfully.
To resolve, remove any network addresses associated with the host and let the CSI driver register the network addresses automatically when the Driver Node pod is restarted.

 

Article Properties
Article Number: 000259460
Article Type: Solution
Last Modified: 11 Mar 2025
Version:  4
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