== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 18:54:46 (1787612086)
UUID                   1K-blocks        Used   Available Use% Mounted on 
lustre-MDT0000_UUID      1414116       11556     1259748   1% /mnt/lustre[MDT:0] 
lustre-MDT0001_UUID      1414116       16188     1255116   2% /mnt/lustre[MDT:1] 
lustre-OST0000_UUID      3833116       30184     3576696   1% /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3833116       13404     3593336   1% /mnt/lustre[OST:1] 

filesystem_summary:      7666232       43588     7170032   1% /mnt/lustre