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    • https://kb.netapp.com/on-prem/ontap/da/SAN/SAN-KBs/iSCSI_LUNs_disconnect_on_Windows_server_during_TO_GB_ONTAP_Upgrade
      ONTAP 9 Windows Server iSCSI protocol Windows servers lose iSCSI connectivity to LUNs presented from storage during TO/GB Upgrade of ONTAP performed san.initiator.login.missing EMS event is reported o...ONTAP 9 Windows Server iSCSI protocol Windows servers lose iSCSI connectivity to LUNs presented from storage during TO/GB Upgrade of ONTAP performed san.initiator.login.missing EMS event is reported on storage end : Sat Jun 08 16:02:22 +0900 [NetApp-02: bcomd: san.initiator.login.missing:notice]: Initiator "iqn.1991-05.com.microsoft:sxxxxxxxx" is not logged in to any LIFs on this node for Vserver "SVM1", portset "XXXXX_SVM1-Portset". Access to LUNs might be disrupted if a failover occurs."
    • https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Why_is_MPIO_Setting_in_Windows_with_iSCSI_path_verify_enabled_PVE_set_to_0
      This is a registry value set and is just one option you can set at the host OS layer effectively probing the target on all paths every 30 seconds. Set to 0 by Windows Unified Host Utilities 7.1 and se...This is a registry value set and is just one option you can set at the host OS layer effectively probing the target on all paths every 30 seconds. Set to 0 by Windows Unified Host Utilities 7.1 and set to 1 in version 7.2 ( Please check latest documentation for any change in this . ) Please consult these technical support resources before making any changes to these parameters as any unsupported configuration by all vendors can cause loss of data access.