== sanity-flr test 71: check mirror extend parent fid ==== 15:27:25 (1787340445)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d71.sanity-flr
 ** lfs fid2path /mnt/lustre 0x200000405:0x58:0x0
/mnt/lustre/d71.sanity-flr/f71.sanity-flr