text: 
  -- asm_extent_distribution.sql
  -- need to add parameter inputs
  
  
  col phys_extent format 999999
  col virt_extent format 999999
  col disk_num format 9999
  col au_num format 999999
  
  select PXN_KFFXP phys_extent,
  	XNUM_KFFXP virt_extent,
  	DISK_KFFXP disk_num,
  	AU_KFFXP au_num
  from X$KFFXP
  where NUMBER_KFFXP=256 -- ASM file 256
  AND GROUP_KFFXP=2      -- diskgroup number 2
  order by 1
  /
  
  