LINUX system preparation

Run this command:

sudo yum repolist

You should see output of RHEL EUS Server SAP HANA

Next clean the cache:

sudo yum clean all

Environment Packages - Base Get available packages:

sudo yum grouplist

Mark base package:

sudo yum group mark convert

If not installed, install it:

sudo yum -y groupinstall base

Verify the following packages are installed by issuing:

rpm -qa --queryformat '(%{installtime:date}) %{name} %{version}\n' kernel
rpm -qa --queryformat '(%{installtime:date}) %{name} %{version}\n' kexec-tools
rpm -qa --queryformat '(%{installtime:date}) %{name} %{version}\n' glibc

Next install the following packages:

sudo yum -y install xulrunner \
	sudo \
	libssh2 \
	expect \
	graphviz \
	iptraf-ng \
	krb5-workstation \
	libpng12 \
	nfs-utils \
	lm_sensors \
	openssl \
	PackageKit-gtk3-module \
	libcanberra-gtk2 \
	xorg-x11-xauth \
	numactl \
	bind-utils

Verify the RHEL SAP HANA Compatibility Library

rpm -qa --queryformat '(%{installtime:date}) %{name}\n' compat-sap-c++-6

Output should be 6.3.1 or higher

If it is missing or less than version 6.3.1 then:

sudo yum -y install compat-sap-c++-6

Activate the RHEL SAP HANA Specific Tuned Profiles

sudo yum -y install tuned-profiles-sap-hana

Now restart:

sudo systemctl start tuned
sudo systemctl enable tuned

Check the service status:

sudo systemctl status tuned

Verify you can execute the profile:

tuned-adm profile sap-hana

or if on VMware:

tuned-adm profile sap-hana-vmware

Disable SELinux:

sudo setenforce 0
sudo sed -i 's/\(SELINUX=enforcing\|SELINUX=permissive\)/SELINUX=disabled/g' /etc/selinux/config

Check the service status:

sestatus

It should return:

SELinux status:                 disabled

Check status:

getenforce

It should return:

Disabled

Disable Disable Automatic NUMA Balancing

sudo cp /etc/sysctl.d/sap_hana.conf /etc/sysctl.d/sap_hana.conf.bkp
sudo echo "kernel.numa_balancing = 0" > /etc/sysctl.d/sap_hana.conf
sudo sysctl -p /etc/sysctl.d/sap_hana.conf

If RHEL7 then also:

sudo systemctl stop numad
sudo systemctl disable numad

Check if symbolic links exist:

ls -la /usr/lib64/libssl.so.1.0.1 /usr/lib64/libcrypto.so.1.0.1

Make sure they show:

lrwxrwxrwx. 1 root root XX yyy zz aa:bb /usr/lib64/libcrypto.so.1.0.1 -> /usr/lib64/libcrypto.so.1.0.1e
lrwxrwxrwx. 1 root root XX yyy zz aa:bb /usr/lib64/libssl.so.1.0.1 -> /usr/lib64/libssl.so.1.0.1e

If not present then make them:

sudo ln -s /usr/lib64/libssl.so.1.0.1e /usr/lib64/libssl.so.1.0.1
sudo ln -s /usr/lib64/libcrypto.so.1.0.1e /usr/lib64/libcrypto.so.1.0.1

Disable firewall to avoid issues:

sudo systemctl stop firewalld.service
sudo systemctl disable firewalld.service

Check the Java Version:

java -version

Which should return:

java version "1.8.0_xx"
Java(TM) SE Runtime Environment (build 1.8.0_xx-yyy)

If not installed see

RPM method preferred run:

sudo rpm -ivh <rpm directory>/sapjvm-<version>-linux-x64.rpm

Update the alternatives Java components:

sudo update-alternatives --install "/usr/bin/java" "java" "/usr/java/sapjvm_8_latest/bin/java" 1
sudo update-alternatives --set java /usr/java/sapjvm_8_latest/bin/java

Reboot the machine.