B.2.9 Example of the Cluster system (Mutual standby) without NIC sharing

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

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.

[HOST-A]

1) Setting up the system

1-1) Define IP addresses and hostnames in /etc/hosts file.

192.168.70.1    hosta   # HOST-A/B Virtual IP (Takeover IP1)
192.168.70.2    host11  # HOST-A Physical IP
192.168.70.3    host21  # HOST-B Physical IP
192.168.71.1    hostb   # HOST-A/B Virtual IP (Takeover IP2)
192.168.71.2    host12  # HOST-A Physical IP
192.168.71.3    host22  # HOST-B Physical IP
192.168.70.100  swhub1  # Primary HUB IP
192.168.70.101  swhub2  # Secondary HUB IP
192.168.71.100  swhub3  # Primary HUB IP
192.168.71.101  swhub4  # Secondary HUB IP

For RHEL8

1-2) Configure /etc/sysconfig/network-scripts/ifcfg-ethX (X is 0, 1, 2, 3) file as follows.

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

TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.70.2
PREFIX=24
DEVICE=eth0
ONBOOT=yes

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

TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.70.2
PREFIX=24
DEVICE=eth1
ONBOOT=no

Contents of /etc/sysconfig/network-scripts/ifcfg-eth2

TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.71.2
PREFIX=24
DEVICE=eth2
ONBOOT=yes

Contents of /etc/sysconfig/network-scripts/ifcfg-eth3

TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.71.2
PREFIX=24
DEVICE=eth3
ONBOOT=no

For RHEL9
1-2) Set the IP address defined above with the "nmcli connection modify" command.
- Configuration of eth0
  Set the following parameters with the "nmcli connection modify" command.
  ipv4.method："manual"
  ipv4.addresses："192.168.70.2/24"
  connection.autoconnect："yes"
- Configuration of eth1
  Set the following parameters with the "nmcli connection modify" command.
  ipv4.method："manual"
  ipv4.addresses："192.168.70.2/24"
  connection.autoconnect："no"
- Configuration of eth2
  Set the following parameters with the "nmcli connection modify" command.
  ipv4.method："manual"
  ipv4.addresses："192.168.71.2/24"
  connection.autoconnect："yes"
- Configuration of eth3
  Set the following parameters with the "nmcli connection modify" command.
  ipv4.method："manual"
  ipv4.addresses："192.168.71.2/24"
  connection.autoconnect："no"
  After setting, verify that the following parameters are set for ethX with the nmcli connection show command. If the parameters are different, fix the settings seeing "3.2.2.1 Setup common to modes."
  connection.type："802-3-ethernet" connection.id: "ethX" connection.interface-name："ethX"

2) Reflecting system setting

Run the following command and reload the connection profile. After reloading the profile, verify eth0 and eth2 are enabled using the ip command.

/usr/bin/nmcli connection reload

3) Setting subnet masks

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.70.0 -m 255.255.255.0
/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.71.0 -m 255.255.255.0

4) Creating virtual interfaces

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 192.168.70.1 -e 192.168.70.2 -t eth0,eth1
/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha1 -m d -i 192.168.71.1 -e 192.168.71.2 -t eth2,eth3

Note

Ensure that the physical IP address specified using option '-e' is the same IP address configured in /etc/sysconfig/network-scripts/ifcfg-ethX in RHEL8 or in the "nmcli connection modify" command in RHEL9. In RHEL8 or later, to correct mismatch of IP addresses, GLS automatically rewrites the configuration of the connection profile based on the IP address specified in the GLS command.

5) Setting up the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p 192.168.70.100,192.168.70.101 -b off
/opt/FJSVhanet/usr/sbin/hanetpoll create -n sha1 -p 192.168.71.100,192.168.71.101 -b off

6) Setting up the Standby patrol monitoring function

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha2 -m p -t sha0
/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha3 -m p -t sha1

7) Creating takeover virtual interfaces

/opt/FJSVhanet/usr/sbin/hanethvrsc create -n sha0
/opt/FJSVhanet/usr/sbin/hanethvrsc create -n sha1

8) Reboot

Run the following command to reboot the system.

/sbin/shutdown -r now

[HOST-B]