== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 21:49:21 (1767322161)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210176       10240     2197888   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392       23552     3745792   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392       24576     3729408   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784       48128     7475200   1%  /mnt/lustre