== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 18:10:36 (1746137436)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       15776     1271912   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       21444     1266244   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       23556     3583464   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       19592     3587428   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       43148     7170892   1% /mnt/lustre