== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 14:21:04 (1761243664)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210304       10496     2197760   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392       22528     3731456   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392       24576     3744768   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784       47104     7476224   1%  /mnt/lustre