== sanity-flr test 71: check mirror extend parent fid ==== 12:54:19 (1750179259)
striped dir -i1 -c2 -H all_char /mnt/lustre/d71.sanity-flr
 ** lfs fid2path /mnt/lustre [0x200000405:0x2e:0x0]
/mnt/lustre/d71.sanity-flr/f71.sanity-flr