== sanity test 56dc: test 'lfs df -o' only shows OST devices ========================================================== 03:59:42 (1747814382)
UUID                   1K-blocks        Used   Available Use% Mounted on
lustre-MDT0000_UUID      1414116       24508     1263180   2% /mnt/lustre[MDT:0]
lustre-MDT0001_UUID      1414116       21452     1266236   2% /mnt/lustre[MDT:1]
lustre-OST0000_UUID      3833116       21696     3585324   1% /mnt/lustre[OST:0]
lustre-OST0001_UUID      3833116       23508     3583512   1% /mnt/lustre[OST:1]

filesystem_summary:      7666232       45204     7168836   1% /mnt/lustre