Can anyone tell me the server requirements for storage on the OXApps server?

The documentation suggests 500M + user storage.

We'll be using external servers for email & files. However I can't see where other items such as calendar, tasks, etc are stored.

We're basing our requirements on http://oxpedia.org/wiki/index.php?ti...X_Tutorial_10K and currently licensed to us

OX AppSuite Pro
OX Drive
OX Documents
OX Guard
OX Webmail
OX Sync

Am guessing extra components use mysql for storage - but would rather over provision than run short.