B.3.4 Example of the Cluster system (1:1 Standby)

This section describes an example configuration procedure of the network shown in the diagram below.

The xx in the figure below are assigned automatically by the automatic address configuration.

For the network configuration other than GLS, refer to "3.2.2 Network configuration".
For configuring the cluster system, refer to the Cluster system manual.
In this section, description of private LAN is omitted.
The dotted line indicates that the interface is inactive.
You need at least a remote host using Fast switching mode other than a node used for configuring a Cluster system. For details on configuring a remote host, refer to "B.3.1 Example of the Single system".

[HOST-A]

1) Setting up the system

1-1) Define IP addresses and hostnames in the /etc/hosts file. Note that it is not necessary to define an IPv6 address, which automatically allocates address by the Stateless Address Autoconfiguration feature.

192.168.70.1    host11  # HOST-A Physical IP
192.168.71.1    host12  # HOST-A Physical IP
192.168.80.1    hosta   # HOST-A Virtual IP
192.168.70.2    host21  # HOST-B Physical IP
192.168.71.2    host22  # HOST-B Physical IP
192.168.80.2    hostb   # HOST-B Virtual IP
192.168.80.3    hosta1  # HOST-A/B Takeover virtual IP
fec0:1::3       v6hosta1   # HOST-A/B Takeover virtual IP

1-2) Configure the /etc/sysconfig/network-scripts/ifcfg-ethX (X is 0,1) file as follows.

Contents of /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.70.1
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

Contents of /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.71.1
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

2) Reboot

Run the following command and reboot the system. After rebooting the system, verify eth0 and eth1 are enabled as an IPv4/IPv6 interface using the ip command.

/sbin/shutdown -r now

3) Setting a subnet mask

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.80.0 -m 255.255.255.0

4) Creating virtual interfaces

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m t -i 192.168.80.1 -t eth0,eth1
/opt/FJSVhanet/usr/sbin/hanetconfig create inet6 -n sha0 -m t -t eth0,eth1

5) Creating a takeover virtual interface

/opt/FJSVhanet/usr/sbin/hanethvrsc create -n sha0 -i 192.168.80.3,fec0:1::3/64

6) Setting up IPv6 routers

Create /etc/radvd.conf file and set the following.

interface sha0
{
        AdvSendAdvert on;        # Sending router advertisements
        MinRtrAdvInterval 3;
        MaxRtrAdvInterval 10;
        prefix fec0:1::0/64      # Sending Prefix fec0:1::0/64 from sha0
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr on;
        };
};

Note

In the server that runs Fast switching mode, configure two or more router as IPv6 router. If the IPv6 router breaks down, it cannot use site-local address to communicate.
To prevent this, it is recommended to setup at least two IPv6 routers.
Depending on the version of radvd, kernel parameter(net.ipv6.conf.all.forwarding=1) must be defined in /etc/sysctl.conf file. For details on /etc/radvd.conf, refer to the radvd.conf(5), radvd(8) manual.

7) Reboot

Run the following command and reboot the system.

/sbin/shutdown -r now

[HOST-B]