README.md

Some tools

Time of attaching volume to skip hlu 0

# Collect the time used during attach.
python time_attach_skip_hlu_0.py test 2>&1 | tee attach-modify-hlu-clean.log
# Clean up the attachment of lun.
python time_attach_skip_hlu_0.py clean 2>&1 | tee attach-modify-hlu-clean.log