== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 23:37:08 (1772426228)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116       19760     1251544   2%  /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       26896     1244408   3%  /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       27932     3579088   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       17708     3589312   1%  /mnt/lustre[OST:1]

filesystem_summary:      7666232       45640     7168400   1%  /mnt/lustre