== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 17:48:00 (1788472080)
UUID                   1K-blocks        Used   Available Use% Mounted on 
lustre-MDT0000_UUID      2210048        7552     2200448   1% /mnt/lustre[MDT:0] 
lustre-OST0000_UUID      3771392       22528     3737600   1% /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3771392       25600     3734528   1% /mnt/lustre[OST:1] 

filesystem_summary:      7542784       48128     7472128   1% /mnt/lustre