Description of problem:

hardware-detect -H --benchmark disk
  Fails with the following error:

Benchmarking storage vda for 10 seconds in read mode with blocksize=1M
Traceback (most recent call last):
  File "/bin/hardware-detect", line 10, in <module>
    sys.exit(main())
  File "/usr/lib/python3.6/site-packages/hardware/detect.py", line 944, in main
    destructive=args.benchmark_disk_destructive)
  File "/usr/lib/python3.6/site-packages/hardware/benchmark/disk.py", line 167, in disk_perf
    "read", "1M", running_time, RAMP_TIME)
  File "/usr/lib/python3.6/site-packages/hardware/benchmark/disk.py", line 92, in run_fio
    if ('MYJOB-' in line) and ('pid=' in line):
TypeError: a bytes-like object is required, not 'str'


Version-Release number of selected component (if applicable):


Red Hat Enterprise Linux release 8.0 (Ootpa)

Red Hat OpenStack Platform release 15.0.0 Beta (Stein)

python3-hardware-detect.noarch                0.20.2-0.20190618010411.1701537.el8ost                   @rhelosp-15.0



How reproducible:

consistent.



Steps to Reproduce:
1.connect to vm in overcloud
2. install python3-hardware-detect
3. hardware-detect -H --benchmark disk

Actual results:




Expected results:
script should return correct results

Additional info:

See also: 
BZ# 1670606	Red Hat OpenStack	python-hardware	lhh	

    As this issue was seen while verifying the above bug.