B.10.5 Example of the Cluster system (1:1 Standby)

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 the GS configuration, refer to GS manual.
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 the /etc/hosts file.

192.168.70.1    host11   # HOST-A Physical IP
192.168.71.1    host12   # HOST-A Physical IP
192.168.70.2    host11   # HOST-B Physical IP
192.168.71.2    host12   # HOST-B Physical IP
192.168.80.1    hosta    # HOST-A/B Virtual IP(Takeover virtual IP)
192.168.80.254  virgw    # Virtual gateway
192.168.70.3    gs11     # GS-1 Physical IP(IP-1)
192.168.71.3    gs12     # GS-1 Physical IP(IP-2)
192.168.81.3    gsa      # GS-1 Virtual IP

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

For RHEL7

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

For RHEL8 or later

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

TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.70.1
PREFIX=24
DEVICE=eth0
ONBOOT=yes

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

TYPE=Ethernet
BOOTPROTO=none
IPADDR=192.168.71.1
PREFIX=24
DEVICE=eth1
ONBOOT=yes

1-3) Set the static route information of the virtual gateway for the remote host's virtual IP address in the /etc/sysconfig/network-scripts/route-"interface name" file.

Contents of /etc/sysconfig/network-scripts/route-sha0

GATEWAY0=192.168.80.254  # Virtual gateway
NETMASK0=255.255.255.255 # Subnet mask
ADDRESS0=192.168.81.3    # GS-1 Virtual IP

2) Reflecting system setting

For RHEL7
Run the following command to reboot the system. After rebooting the system, verify eth0 and eth1 are active using the ip command.
```
/sbin/shutdown -r now
```

For RHEL8 or later

Run the following commands to reload the connection profiles. After reloading the profiles, verify eth0 and eth1 are active using the ip command.

/usr/bin/nmcli connection reload
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth0
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth1

3) Setting a subnet mask

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

4) Creating a virtual interface

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

5) Setting the Communication target monitoring function

Setting the Remote host monitoring information:

/opt/FJSVhanet/usr/sbin/hanetobserv create -n GS-1 -i 192.168.81.3 -t 192.168.70.3,192.168.71.3

Setting the destination cluster node monitoring information and the switches monitoring information:

/opt/FJSVhanet/usr/sbin/hanetobserv create -n HOST-B -i 192.168.80.1 -t 192.168.70.2,192.168.71.2,192.168.70.100,192.168.71.100

Note

When you set the destination cluster node monitoring information and the switches monitoring information, be sure to specify the takeover IP address with the "-i" option.

6) Setting a virtual gateway

/opt/FJSVhanet/usr/sbin/hanetgw create -n sha0 -g 192.168.80.254

7) Creating a takeover virtual interface

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

For RHEL8 or later (not required for RHEL7)

8) Reboot

Run the following command to reboot the system.

/sbin/shutdown -r now

[HOST-B]

1) Setting up the system

1-1) Define IP addresses and hostnames in the /etc/hosts file. Defined information is the same as for HOST-A.

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

For RHEL7

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

DEVICE=eth0
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.70.2
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

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

DEVICE=eth1
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.71.2
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

For RHEL8 or later

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=192.168.71.2
PREFIX=24
DEVICE=eth1
ONBOOT=yes

1-3) Set the static route information of the virtual gateway for the remote host's virtual IP address in the /etc/sysconfig/network-scripts/route-"interface name" file. The information is set in the same way as for HOST-A.

2) Reflecting system setting

For RHEL7
Run the following command to reboot the system. After rebooting the system, verify eth0 and eth1 are active using the ip command.
```
/sbin/shutdown -r now
```

For RHEL8 or later

Run the following commands to reload the connection profiles. After reloading the profiles, verify eth0 and eth1 are active using the ip command.

/usr/bin/nmcli connection reload
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth0
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth1

3) Setting a subnet mask

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

4) Creating a virtual interface

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

5) Setting the Communication target monitoring function

Setting the Remote host monitoring information:

/opt/FJSVhanet/usr/sbin/hanetobserv create -n GS-1 -i 192.168.81.3 -t 192.168.70.3,192.168.71.3

Setting the destination cluster node monitoring information and the switches monitoring information:

/opt/FJSVhanet/usr/sbin/hanetobserv create -n HOST-A -i 192.168.80.1 -t 192.168.70.1,192.168.71.1,192.168.70.100,192.168.71.100

Note

When you set the destination cluster node monitoring information and the switches monitoring information, be sure to specify the takeover IP address with the "-i" option.

6) Setting a virtual gateway

/opt/FJSVhanet/usr/sbin/hanetgw create -n sha0 -g 192.168.80.254

7) Creating a takeover virtual interface

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

For RHEL8 or later (not required for RHEL7)

8) Reboot

Run the following command to reboot the system.

/sbin/shutdown -r now

[Configuration by RMS Wizard]

1) Configuration of userApplication

After completing the procedure 7) for HOST-A and HOST-B, use the RMS Wizard to set up the cluster environment.

Select the SysNode for HOST-A and HOST-B when creating GLS resources, and then register the created GLS resources with the cluster applications.

When registering the GLS resources with the cluster applications, select the SysNode for HOST-A and HOST-B in order of the operation node and the standby node, and then register the takeover IP address "192.168.80.1".

2) Starting of userApplication: After completing the configuration, start the userApplication to activate the takeover virtual interface on the operation node.

[GS-1]

Set the information for HOST-A's physical IP address and virtual IP address. For information on how to do this, see the GS manual.