select case df.database_id
when DB_ID('distribution') then 'distDB'
when DB_ID('tempdb') then 'tempdb'
--add other needed database
else 'otherDBs'
end as dbName,
case df.type
when 0 then 'datafile'
when 1 then 'logfile'
else 'otherfile'
end as [type],
SUM(num_of_reads) as reads,
SUM(num_of_writes) as writes
From sys.dm_io_virtual_file_stats(null,null) fs
inner join sys.master_files df on fs.database_id=df.database_id
and fs.file_id=df.file_id
group by case df.database_id
when DB_ID('distribution') then 'distDB'
when DB_ID('tempdb') then 'tempdb'
--add other needed database
else 'otherDBs'
end,df.[type]
order by reads desc
