== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 21:21:41 (1753752101)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       17984     1269704   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       24928     1262760   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       27796     3579224   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       17732     3589288   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       45528     7168512   1% /mnt/lustre