PRIMECLUSTER Installation and Administration Guide4.6 Cloud Services

21.5 Checking and Setting the Kernel Parameters

Change the kernel parameters depending on the environment.

Applicable nodes:

All nodes on which PRIMECLUSTER is to be installed

Depending on the products and components utilized, different kernel parameters are required.

Check PRIMECLUSTER Designsheets and if you need to modify the kernel parameters, set them again.

See

For details on kernel parameters, refer to "3.1.7 Checking and Setting the Kernel Parameters" in "PRIMECLUSTER Installation and Administration Guide."

Note

• To activate the modified kernel parameters, restart the OS.

• After uninstalling PRIMECLUSTER, change the kernel parameter settings back to the state before installing PRIMECLUSTER if necessary.

Set the following kernel parameters.

This setting is not necessary in a single-node cluster.

Parameter	Value	Remarks: meaning of (parameter)
kernel.panic	0	Seconds to wait until the kernel is restarted in case of a panic. If 0 is set, the kernel is not restarted.
kernel.unknown_nmi_panic	1	A panic occurs in the NMI interrupt.
kernel.sysrq	Other than 0	The SysRq key is enabled.