== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 15:31:58 (1758742318)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       21200     1266488   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       19592     1268096   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       28608     3578412   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       15932     3591088   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       44540     7169500   1% /mnt/lustre