== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 03:55:10 (1768553710)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210176       10240     2197888   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392       22528     3737600   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392       24576     3735552   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784       47104     7473152   1%  /mnt/lustre