IBM/Lenovo Server Centos Linux MegaRaid install & show info

*** downlaod 

https://docs.broadcom.com/docs-and-downloads/raid-controllers/raid-controllers-common-files/8-07-14_MegaCLI.zip

*** unzip the files

unzip 8-07-14_MegaCLI.zip

*** if you don't have unzip, use this command to install

yum install unzip

*** install the driver, change to the Linux directory and run this commnad

sudo yum install MegaCli-8.07.14-1.noarch.rpm

*** run the command and get help

/opt/MegaRAID/MegaCli/MegaCli64 -h

*** check raid simple status

/opt/MegaRAID/MegaCli/MegaCli64 -ShowSummary -aALL