PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.6Redundant Line Control Function

B.4.1 Example of the Single system 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".

[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 Virtual IP
192.168.70.2    host11  # HOST-A Physical IP
192.168.70.3    hostb   # HOST-B Virtual IP
192.168.70.4    host21  # HOST-B Physical IP
192.168.70.100  swhub1  # Primary HUB IP
192.168.70.101  swhub2  # Secondary HUB IP

1-2) Configure /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
    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=192.168.70.2
    PREFIX=24
    DEVICE=eth1
    ONBOOT=no

2) Reflecting system setting

• For RHEL7

  Run the following command and reboot the system. After rebooting the system, verify eth0 is enabled using the ip command.

  /sbin/shutdown -r now

• For RHEL8 or later

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

  /usr/bin/nmcli connection reload

3) Setting a subnet mask

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

4) Creating a virtual interface

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

Note

Ensure that the physical IP address specified using option '-e' is the same IP address configured in /etc/sysconfig/network-scripts/ifcfg-eth0. 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

6) Setting up the Standby patrol monitoring function

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

For RHEL7

7) Activating the virtual interface

/opt/FJSVhanet/usr/sbin/strhanet

8) Starting the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll on

For RHEL8 or later

7) 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 /etc/hosts file. Defined content is same as HOST-A.

1-2) Configure /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=192.168.70.4
    NETMASK=255.255.255.0
    TYPE=Ethernet

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

    DEVICE=eth1
    BOOTPROTO=static
    HOTPLUG=no
    ONBOOT=yes
    TYPE=Ethernet

• For RHEL8 or later

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

    TYPE=Ethernet
    BOOTPROTO=none
    IPADDR=192.168.70.4
    PREFIX=24
    DEVICE=eth0
    ONBOOT=yes

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

    TYPE=Ethernet
    BOOTPROTO=none
    IPADDR=192.168.70.4
    PREFIX=24
    DEVICE=eth1
    ONBOOT=no

2) Reflecting system setting

• For RHEL7

  Run the following command and reboot the system. After rebooting the system, verify eth0 is enabled using the ip command.

  /sbin/shutdown -r now

• For RHEL8 or later

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

  /usr/bin/nmcli connection reload

3) Setting a subnet mask

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

4) Creating a virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 192.168.70.3 -e 192.168.70.4 -t eth0,eth1 

Note

Ensure that the physical IP address specified using option '-e' is the same IP address configured in /etc/sysconfig/network-scripts/ifcfg-eth0. 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

6) Setting up the Standby patrol monitoring function

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

For RHEL7

7) Activating the virtual interface

/opt/FJSVhanet/usr/sbin/strhanet

8) Starting the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll on

For RHEL8 or later

7) Reboot

Run the following command to reboot the system.

/sbin/shutdown -r now