== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 21:39:25 (1746149965)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       19244     1268444   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       17844     1269844   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       20452     3586568   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       22692     3584328   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       43144     7170896   1% /mnt/lustre