== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 23:42:49 (1763354569)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116       14736     1256568   2%  /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       20280     1251024   2%  /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       27056     3579964   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       16504     3590516   1%  /mnt/lustre[OST:1]

filesystem_summary:      7666232       43560     7170480   1%  /mnt/lustre