== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 12:53:42 (1754412822)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       18000     1269688   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       25076     1262612   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       28004     3579016   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       17488     3589532   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       45492     7168548   1% /mnt/lustre