Thanks for all the replys everyone.
Let me explain why i asked.
I have an xperia z1 compact (android 4.3) and under storage it says to add a sftp (ssh file transfer protocol) share and my phone will show the share as a normal drive.
so if it's not something i could add to my current OMV setup I would not mess with it. I was more intrigued at what i might be able to do with it on my phone.
Again thanks for all the replies.