You cannot resize a virtual disk after adding
it to the Panorama virtual appliance running on a VMware ESXi server.
Because the Panorama virtual appliance in Legacy mode allows only
one log storage location, you must replace the virtual disk as follows
to modify the log storage capacity. In Panorama mode, you can simply
add another disk (up to the maximum of 12) to Expand Log Storage Capacity on the Panorama Virtual Appliance.