== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 19:07:26 (1746140846)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       16096     1271592   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       21648     1266040   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       27584     3579436   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       15576     3591444   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       43160     7170880   1% /mnt/lustre