== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 17:12:10 (1760130730)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      2210304       10368     2197888   1% /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392       21504     3747840   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392       26624     3742720   1% /mnt/lustre[OST:1]

filesystem_summary:      7542784       48128     7490560   1% /mnt/lustre