== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 15:16:47 (1738959407)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       19844     1267844   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       17304     1270384   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116      539212     3067808  15% /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3833116      536316     3070704  15% /mnt/lustre[OST:1]

filesystem_summary:      7666232     1075528     6138512  15% /mnt/lustre