https://www.cyberciti.biz/faq/howto-view-cpu-temperature-on-rhel7-centos-linux-7/
# yum install lm_sensors
# sensors-detect
select all Yes
# sensors
How do I get my hard drive temperature information on a CentOS/RHEL 7 Linux?
# yum install hddtemp
hddtemp /dev/sda