6.2.1 GLS Setup

For information on the initial GLS setup, see "Chapter 5 Operation on Cluster System" in the "PRIMECLUSTER Global Link Services Configuration and Administration Guide : Redundant Line Control Function."

This section describes how to set up "Example of the Cluster system" of "Example of configuring NIC switching mode (IPv4)" that GLS (redundant line control function) provides. This procedure is described in the example below.

The setup values correspond to those on the "A.8.3 GLS Setup Worksheet."

Operation Procedure:

If the OPERATING node is [HOST-primecl01]

Setting up the system
1. Define the IP address and Host name in /etc/hosts file.
```
10.34.214.185   takeoverIP   # Virtual IP
10.34.214.181   primecl01    # primecl01 Physical IP
10.34.214.182   primecl02    # primecl02 Physical IP
10.34.214.188   swhub1       # primary HUB IP
10.34.214.189   swhub2       # secondary HUB IP
```
2. Configure physical interface definition file as follows.
  - Contents of /etc/sysconfig/network-scripts/ifcfg-eth0
```
DEVICE=eth0
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
BROADCAST=10.34.214.255
IPADDR=10.34.214.181
NETMASK=255.255.255.0
NETWORK=10.34.214.0
ONBOOT=yes
TYPE=Ethernet
```
  - Contents of /etc/sysconfig/network-scripts/ifcfg-eth1
```
DEVICE=eth1
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet
```
  Note
  If the basic software is RHEL4 or RHEL5, and you specify "HWADDR=XX:XX:XX:XX:XX:XX" in the settings for the physical interfaces bundled by GLS (/etc/sysconfig/network-scripts/ifcfg-ethX file), add "HOTPLUG=no." In the RHEL5 environment, disable the hot plug function settings for the virtual interface (sha) by editing the /etc/udev/rules.d/60-net.rules file.
  Information
  "HOTPLUG=no" used when the basic system (OS) is RHEL4 or RHEL5 does not disable the PCI hot plug function.
  You can perform hot maintenance for NIC (PCI card) to the physical interfaces with "HOTPLUG=no."
3. When the system is RHEL, on the /etc/sysconfig/network file, define a statement which enables the network configuration.
```
NETWORKING=yes
NETWORKING_IPV6=no
```
4. Setting Hot Plug
  Edit the /etc/udev/rules.d/60-net.rules file for RHEL5 environments, and nullify the Hot Plug to virtual interface (sha). The setting of this file is unnecessary in RHEL4 environments.
```
SUBSYSTEM="net",ENV{INTERFACE}=="sha*",GOTO="skipgls"
ACTION=="add",SUBSYSTEM=="net",IMPORT{program}="/lib/udev/rename_device"
SUBSYSTEM=="net",RUN+="/etc/sysconfig/network-scripts/net.hotplug"
LABEL="skipgls"
```
Rebooting
Run the following command and reboot the system. After rebooting the system, verify eth0 is enabled using "ifconfig" command.
```
# /sbin/shutdown -r now
```
Setting a subnet mask
For the underlined parameter, specify the network address and the subnet mask of the virtual interface.
```
# /opt/FJSVhanet/usr/sbin/hanetmask create -i 10.34.214.0 -m 255.255.255.0
```
Check that the facility has been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanetmask print
```
Note
For details on the subnet mask value, see "hanetmask command" in the "PRIMECLUSTER Global Link Services Configuration and Administration Guide : Redundant Line Control Function."
Creating of virtual interface
For the underlined parameter, specify the physical IP address of the node.
```
# /opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 10.34.214.185 -e 10.34.214.181 -t eth0,eth1
```
Check that the virtual interface has been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanetconfig print
```
Setting up the HUB monitoring function
For the underlined parameter, specify the IP addresses of the hubs to be monitored.
```
# /opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p 10.34.214.188,10.34.214.189 -b off
```
Check that the facility has been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanetpoll print
```

Setting up the Standby patrol monitoring function

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

Check that the facility has been set up correctly.

# /opt/FJSVhanet/usr/sbin/hanetconfig print

Creating of the takeover IP address (takeover virtual Interface)
```
# /opt/FJSVhanet/usr/sbin/hanethvrsc create -n sha0
```
Check that the registration has been done correctly.
```
# /opt/FJSVhanet/usr/sbin/hanethvrsc print
```

If the STANDBY node is [HOST-primecl02]

Setting up the system
1. Define the IP address and Host name in /etc/hosts file. Defined content is same as HOST-primecl01.
2. Configure physical interface definition file as follows.
  - Contents of /etc/sysconfig/network-scripts/ifcfg-eth0
```
DEVICE=eth0
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
BROADCAST=10.34.214.255
IPADDR=10.34.214.182
NETMASK=255.255.255.0
NETWORK=10.34.214.0
ONBOOT=yes
TYPE=Ethernet
```
  - Contents of /etc/sysconfig/network-scripts/ifcfg-eth1
```
DEVICE=eth1
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet
```
3. When the system is RHEL, on the /etc/sysconfig/network file, define a statement which enables the network configuration.
```
NETWORKING=yes
NETWORKING_IPV6=no
```
4. Setting Hot Plug
  Edit the /etc/udev/rules.d/60-net.rules file for RHEL5 environments, and nullify the Hot Plug to virtual interface (sha). The setting of this file is unnecessary in RHEL4 environments.
```
SUBSYSTEM="net",ENV{INTERFACE}=="sha*",GOTO="skipgls"
ACTION=="add",SUBSYSTEM=="net",IMPORT{program}="/lib/udev/rename_device"
SUBSYSTEM=="net",RUN+="/etc/sysconfig/network-scripts/net.hotplug"
LABEL="skipgls"
```
Rebooting
Run the following command and reboot the system. After rebooting the system, verify eth0 is enabled using "ifconfig" command.
```
# /sbin/shutdown -r now
```
Setting a subnet mask
For the underlined parameter, specify the network address and the subnet mask of the virtual interface.
```
# /opt/FJSVhanet/usr/sbin/hanetmask create -i 10.34.214.0 -m 255.255.255.0
```
Check that the facility has been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanetmask print
```
Note
For details on the subnet mask value, see "hanetmask command" in the "PRIMECLUSTER Global Link Services Configuration and Administration Guide : Redundant Line Control Function."
Creating of virtual interface
For the underlined parameter, specify the physical IP address of the node.
```
# /opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 10.34.214.185 -e 10.34.214.182 -t eth0,eth1
```
Check that the virtual interface has been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanetconfig print
```
Setting up the HUB monitoring function
In the underlined parameter, specify the IP addresses of the hubs to be monitored.
```
# /opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p 10.34.214.188,10.34.214.189 -b off
```
Check that the facility has been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanetpoll print
```

Setting up the Standby patrol monitoring function

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

Check that the facility has been set up correctly.

# /opt/FJSVhanet/usr/sbin/hanetconfig print

Creating of the takeover IP address (takeover virtual Interface)
```
# /opt/FJSVhanet/usr/sbin/hanethvrsc create -n sha0
```
Check that the resources have been set up correctly.
```
# /opt/FJSVhanet/usr/sbin/hanethvrsc print
```

Post-setup processing

After the OPERATING and STANDBY node setup is done, create the Gls resources and register them to the cluster application.

For details, see "6.7.3.5 Setting Up Gls Resources" and "6.7 Setting Up Cluster Applications."

You also need to reboot the system after registering the cluster application. Then, start RMS and check the RMS tree to confirm whether the Gls resources are displayed correctly. For details, see "7.1.3.1 RMS Tree."

The Gls resource name is displayed as GlsX (X is integer).

See

For information on GLS (redundant line control function) and other operation modes, see "Appendix B Examples of Setting Up" in the "PRIMECLUSTER Global Link Services Configuration and Administration Guide : Redundant Line Control Function."