Ericsson Evo BSC 8300

Hello Gents, Can some one share ericsson BSC introduction and HC , Basic KPI, As i am strugelling to manage Ericsson BSC,
basic question like
Site status ?
Traffic is being carried by site ?
ping MSC and SGSN ip ?
how to login to bsc through ENM?
How to delete and create a new a cell/ site in ericsson EVO BSC ?
How to check license ?
How to check capacity ?
Also need little explanation and MO structure of a site so that I can undertsand how site is created ?