== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 15:30:28 (1752694228)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       15748     1271940   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       22120     1265568   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       27308     3579712   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       17228     3589792   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       44536     7169504   1% /mnt/lustre