hello id like to add my inputs to my installation of plesk. firstly plesk multi server dosent like XFS atleast not to my testing. so after a chat with the plesk guys asking what would be best for us to use they said ext4 so after 1 failed installation of chooseing the wrong file system i got it working. what i did to make the quota work: installed centos 7 and enabled quota on both servers befor installing plesk if you install quota after you install plesk it dosent want to sync. and then i installed slave dns extensions to controll our slave dns/whmcs server. this was on friday so we havent played with it yet.