Applies to ONTAP 9 NFSV4 Issue Enabling NFS v4 on existing volume throws below alert: WARNING: NFSv4.x access to transitioned volumes in this Vserver could trigger conversion of non-Unicode directorie...Applies to ONTAP 9 NFSV4 Issue Enabling NFS v4 on existing volume throws below alert: WARNING: NFSv4.x access to transitioned volumes in this Vserver could trigger conversion of non-Unicode directories to Unicode, which might impact data-serving performance. Before enabling NFSv4.x for this Vserver, refer to the Data and Configuration Transition Guide.