== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 22:47:05 (1778294825)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116       23272     1248032   2%  /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       19860     1251444   2%  /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       24944     3581600   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       20676     3586312   1%  /mnt/lustre[OST:1]

filesystem_summary:      7666232       45620     7167912   1%  /mnt/lustre