== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 22:17:52 (1723256272)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       20464     1267224   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       19016     1268672   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       31936     3575084   1% /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3833116       15536     3591484   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       47472     7166568   1% /mnt/lustre