== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 14:54:16 (1747853656)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       24292     1263396   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       21348     1266340   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       32632     3574388   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       12608     3594412   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       45240     7168800   1% /mnt/lustre