== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 11:06:07 (1781622367)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210176        9600     2198528   1%  /mnt/lustre[MDT:0] 
lustre-OST0000_UUID      3771392       22528     3718144   1%  /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3771392       26624     3737600   1%  /mnt/lustre[OST:1] 

filesystem_summary:      7542784       49152     7455744   1%  /mnt/lustre