== sanity test 56Dc: test 'lfs df -o' only shows OST devices ========================================================== 17:11:53 (1787865113)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      1414116       11536     1259768   1%  /mnt/lustre[MDT:0] 
lustre-MDT0001_UUID      1414116       16396     1254908   2%  /mnt/lustre[MDT:1] 
lustre-OST0000_UUID      3833116       31928     3574588   1%  /mnt/lustre[OST:0] 
lustre-OST0001_UUID      3833116       11672     3595236   1%  /mnt/lustre[OST:1] 

filesystem_summary:      7666232       43600     7169824   1%  /mnt/lustre