The lab server uses Redhat as its operating system, but one of the biggest problems is that it cannot be shut down normally, or the power cannot be shut down after shutdown. You need to manually shut down the server. So that we have always been accustomed to shutting down the server after the power button is pressed. It turns out that it was an illegal shutdown, which could damage the hard disk. It was discovered yesterday that the power could not be switched off only after the shutdown, and the other services were shut down. It should not be damaged by the hard disk.
According to the method provided in the article "how to solve the problem of poweroff power supply failure" (that is, adding parameters)APM = off ACPI = on) Does not solve this problem, and later found a similar method, is in/boot/GRUB/grub. in the conf file, add the APM = power_off ACPI = on parameter to solve the problem.
Tip: http://pheyoung.blogbus.com/logs/86551357.html