== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 08:36:46 (1743511006)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       17468     1270220   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       14244     1273444   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116      546136     3060828  16% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116      528676     3078232  15% /mnt/lustre[OST:1]

filesystem_summary:      7666232     1074812     6139060  15% /mnt/lustre