I had a client who ordered a new server for me to configure. The memory was not what was ordered so I checked out all the other hardware was in order as well.
The hard drives were supposed to be SSD’s but they were connected to a PERC Raid controller. This command allowed me to view them.
smartctl -a /dev/sda -d sat+megaraid,00
smartctl -a /dev/sdb -d sat+megaraid,00
If you don’t have Smartmon installed.
yum install smartmontools