Problem while Changing Patch Store Directory - "Invalid Patch Store Location

hello,

I have installed ManageEngine Desktop Central version 91025 in Windows 2008.

I haven't any space in disk.

I want to change location folder to downloads to san.

I tried to connect a "map network drive" ex. (net use w: \\ip\folder)

I tried to connect a "share folder" in a SAN by nfs ex. (mount 10.10.10.203:/patchs r:)

but it does not work. It shows this message: " Please enter a valid Patch Store location" and I read the kb https://www.manageengine.com/products/desktop-central/patch_store_invalid.html?dci

I read the option "map network drive" does not work but the option share folder should work but It does not work.

how do I fix it?

Regards