== sanity test 31j: link for directory =================== 02:01:21 (1784700081)
striped dir -i1 -c1 -H crush2  /mnt/lustre/d31j.sanity
striped dir -i1 -c1 -H fnv_1a_64  /mnt/lustre/d31j.sanity/dir1
ln: /mnt/lustre/d31j.sanity/dir1: hard link not allowed for directory
link: cannot create link '/mnt/lustre/d31j.sanity/dir3' to '/mnt/lustre/d31j.sanity/dir1': Operation not permitted
link: cannot create link '/mnt/lustre/d31j.sanity/dir1' to '/mnt/lustre/d31j.sanity/dir1': File exists