HP-UX will disappear real soon, and that is a real pity, e.g. because decades ago, HP-UX already demonstrated that LVM can be so stable and easy to use, that it is used by default. Being a little obscure under the hood, HP-UX offers reasonable text and X11 based GUIs for most administration tasks. Unfortunately, you need them, too. If you think Linux is too easy, HP-UX is for you.