NetApp ONTAP tools for VMware vSphere (OTV) 9.12+ The ONTAP Tools for VMware vSphere (OTV) Plugin shows the Cluster storage system with status of 'Client Certificate Expired' under status. In the red ...NetApp ONTAP tools for VMware vSphere (OTV) 9.12+ The ONTAP Tools for VMware vSphere (OTV) Plugin shows the Cluster storage system with status of 'Client Certificate Expired' under status. In the red section seen in the screenshot below, the message will include the following example: