== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 20:29:11 (1788568151)
UUID                   1K-blocks        Used   Available Use% Mounted on 
lustre-MDT0000_UUID      2210176        8960     2199168   1% /mnt/lustre[MDT:0] 
lustre-OST0000_UUID      3771392       22528     3737600   1% /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3771392       26624     3730432   1% /mnt/lustre[OST:1] 

filesystem_summary:      7542784       49152     7468032   1% /mnt/lustre