== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 13:43:35 (1772909015)
UUID                   1K-blocks        Used   Available Use%  Mounted on
lustre-MDT0000_UUID      2210432       14080     2194304   1%  /mnt/lustre[MDT:0]
lustre-OST0000_UUID      3771392       25600     3736576   1%  /mnt/lustre[OST:0]
lustre-OST0001_UUID      3771392       28672     3738624   1%  /mnt/lustre[OST:1]

filesystem_summary:      7542784       54272     7475200   1%  /mnt/lustre