SQL Server MetaData Functions

fn_helpcollations() -- Lists all the collations supported by SQL Server
select * from sys.fn_helpcollations()

fn_servershareddrives() -- Lists all shared drives used by cluster
select * from fn_servershareddrives()

fn_virtualfilestats(DatabaseId, FileId) -- Displays I/O statistics for data and log files.
select * from fn_virtualfilestats(1,1)
select * from fn_virtualfilestats(DB_ID('kalyandb'),1)
select * from fn_virtualfilestats(DB_ID('kalyandb'),2)
select * from fn_virtualfilestats(Null,Null)

 fn_virtualserverfilemodes() -- Displays clustered instance nodes