== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 12:33:16 (1772472796)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210304       10368     2197888   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392       22528     3723264   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392       24576     3744768   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784       47104     7468032   1%  /mnt/lustre