== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 05:00:10 (1749546010)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       18952     1268736   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       26024     1261664   3% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       26596     3580424   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       18588     3588432   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       45184     7168856   1% /mnt/lustre