== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 19:59:08 (1788220748)
UUID                   1K-blocks        Used   Available Use% Mounted on 
lustre-MDT0000_UUID      2210048        8320     2199680   1% /mnt/lustre[MDT:0] 
lustre-OST0000_UUID      3771392       23552     3745792   1% /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3771392       25600     3743744   1% /mnt/lustre[OST:1] 

filesystem_summary:      7542784       49152     7489536   1% /mnt/lustre