== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 02:48:39 (1786430919)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116       11516     1259788   1%  /mnt/lustre[MDT:0] 
lustre-MDT0001_UUID      1414116       16392     1254912   2%  /mnt/lustre[MDT:1] 
lustre-OST0000_UUID      3833116       24764     3582060   1%  /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3833116       18836     3587708   1%  /mnt/lustre[OST:1] 

filesystem_summary:      7666232       43600     7169768   1%  /mnt/lustre