== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 22:58:34 (1772683114)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116       19060     1252244   2%  /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       25824     1245480   3%  /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       32716     3574304   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       11860     3595160   1%  /mnt/lustre[OST:1]

filesystem_summary:      7666232       44576     7169464   1%  /mnt/lustre