System Manager displays partially connected status for igroup

Applies to

• ONTAP 9.11.x and above
• SAN

Issue

• System Manager displays partially connected for igroup and portset:

• Alert details identify LIF with the current initiator connection:
  • 

• EMS log shows:

Partially connected Initiator 'xxxxxxxxxxxxx' is not logged in to any network interfaces on node "node1"

• FC initiators seem to be logged in to only one of the nodes.

igroup show -instance -vserver v1 -igroup ig1

Vserver Name: v1
Igroup Name: ig1
Protocol: fcp
OS Type: vmware
Portset Binding Igroup: -         
Initiators:21:00:xx:xx:xx:xx:xx (node1) (not logged in)
           21:00:xx:xx:xx:xx:xx (node2) ( logged in)

• iSCSI initiators show they are logged in:

igroup show -instance -vserver svm_iscsi -igroup iscsi_svm_hv
          Vserver Name: svm_iscsi
           Igroup Name: iscsi_svm_hv
              Protocol: mixed
               OS Type: hyper_v
Portset Binding Igroup: -
           Igroup UUID: 1672833e-ab48-11ef-91b0-d039eabda81a
                  ALUA: true
            Initiators: iqn.1991-05.com.microsoft:hv.example.local (logged in)
iqn.1991-05.com.microsoft:hv.example.local (logged in)

• LIFs and corresponding ports hosting the LIFs are up and online on both the Nodes on storage end

• Host login events (scsitarget.fct.portLogin) from affected host logged in on storage EMS related to host/switch reboots

• missing login events logged from the same initiator, indicating that the host could not establish connection back to storage post reboot of the host:

Fri Dec 22 16:57:02 +0530 [NetApp1: fct_tpd_work_thread_0: scsitarget.fct.portLogin:notice]: Login at target FC port: '0e' by initiator port: 'aa:00:00:10:9b:yy:xy:xx' address 0x106xx. The target virtual port is: 'NetApp FC Target Port (8324) svm:lif_1'.
Fri Dec 22 17:01:48 +0530 [NetApp1: bcomd: san.initiator.login.missing:notice]: Initiator "aa:00:00:10:9b:yy:xy:xx" is not logged in to any LIFs on this node for Vserver "svm", portset "fc_pset_1". Access to LUNs might be disrupted if a failover occurs.
Fri Dec 22 17:16:48 +0530 [NetApp1: bcomd: san.initiator.login:notice]: Missing login for initiator "aa:00:00:10:9b:yy:xy:xx", Vserver "svm", portset "xxx", has been logged on.

• Initiator is logged into LIF of nodeA but is not logged into LIF of partner node and below error message is seen in EMS logs:
  Initiator "10:00:00:00:aa:xx:yy:xx" is not logged in to any network interfaces on node "Nodeb".
   
• Initiator is logged into LIFs on both nodeA and nodeB, but the System Manager GUI still reflects partially connected

Node "NETAPP_01" has no logged in initiators.
iqn.1998-01.com.vmware:esx_host1:123456789:64
The initiator isn't logged in to any network interfaces on node "NETAPP_01

Cluster does show the correct number of connections

NETAPP::> vserver iscsi session show
          Tpgroup        Initiator                        Initiator
Vserver   Name    TSIH   Name                   ISID      Alias
--------- ------- ---- ------------------------ --------- ---------------------
SVM1      NETAPP_01_iscsi-01
                     2 iqn.1998-01.com.vmware:esxi_host1:123456789:64
                                                00:00:00:00:00:01
                                                          iscsi_vmk
SVM1      NETAPP_02_iscsi-02
                     1 iqn.1998-01.com.vmware:esxi_host1:123456789:64
                                                00:00:00:00:00:02
                                                          iscsi_vmk