== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 07:29:49 (1743506989)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       18268     1269420   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       15252     1272436   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116      545700     3061208  16% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116      530112     3076628  15% /mnt/lustre[OST:1]

filesystem_summary:      7666232     1075812     6137836  15% /mnt/lustre