== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 12:36:09 (1789144569)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210048        7936     2200064   1%  /mnt/lustre[MDT:0] 
lustre-OST0000_UUID      3771392       21504     3722240   1%  /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3771392       26624     3742720   1%  /mnt/lustre[OST:1] 

filesystem_summary:      7542784       48128     7464960   1%  /mnt/lustre