This section describes how to change the settings for GS linkage mode. After changing the settings, you need to reflect the changes in the operations following some procedures. Note that the change distribution procedures vary depending on the command used for changing the settings, and whether the settings were changed in a single system configuration (no cluster is used), or a cluster configuration.
Reflection Procedure
hanetconfig command | Single | Cluster |
|---|---|---|
IP address to be assigned for the virtual (-i) | 1 | 2 |
Virtual interface (-n) | 1 | 2 |
Physical interface (-t) | 1 | 2 |
hanetgw command | Single | Cluster |
|---|---|---|
IP address for the virtual gateway (-g) | 1 | 2 |
hanethvrsc command | Single | Cluster |
|---|---|---|
Gateway address for the takeover virtual interface (-e) | - | 2 |
hanetmask command | Single | Cluster |
|---|---|---|
Subnet mask. (-m) | 1 | 1 |
hanetoberv command | Single | Cluster |
|---|---|---|
Virtual IP address of the communication target (-i) | 3 | 2 |
Physical IP address of the communication target (-t) | 3 | 2 |
Monitoring period (-s) | 4 | 4 |
The number of monitoring (-c) | 4 | 4 |
Monitoring period for recovery (-b) | 4 | 4 |
Cluster switching (-f) | - | 4 |
Link up waiting period (-p) | 4 | 4 |
hanetparam command | Single | Cluster |
|---|---|---|
Hostname resolution (-h) | 4 | 4 |
Network configuration of OS | Single | Cluster |
|---|---|---|
Network configuration file (/etc/sysconfig/network-scripts/ifcfg-ethX, /etc/sysconfig/network), hosts file(/etc/hosts) etc. | 5 | 5 |
Procedure 1
Perform one of the following procedures after changing settings.
Deactivate and then activate the target virtual interface.
Deactivate and then activate all the virtual interfaces in GS linkage mode.
Reboot the system.
Execute the resethanet -s command.
Procedure 2
Perform one of the following procedures after changing settings.
Reboot the system.
Execute the resethanet -s command.
Procedure 3
Perform one of the following procedures after changing settings.
Deactivate and then activate all the virtual interfaces in GS linkage mode.
Reboot the system.
Execute the resethanet -s command.
Procedure 4
Changed settings are immediately reflected to the operation after executing the command to change settings. No reflection procedure is required.
Procedure 5
If you modified the network configuration file for the operating system, you must reboot the system instead of manually restarting the network service (/etc/init.d/network restart, service network restart).
Changing Procedure
The following shows the procedure for changing configuration information for GS linkage mode:
Inactivate the target virtual interface using the "stphanet" command. For detail, see Section "7.3 stphanet Command".
Change the configuration information.
Reboot the system.
(Note: restarting the HUB monitoring function with "hanetpoll off/on" enables a change made on the monitoring interval, the number of times for monitoring, the monitoring recovery interval, the waiting time for a link up, or the waiting time for cluster switching.)
The following is a list of the information that can be changed for GS linkage mode. No information can be changed besides the information listed below. Delete the concerned definition and add it again.
Configuration definition information
Use the "hanetconfig" command to change the following information. For information, see Section "7.1 hanetconfig Command".
Host name or IP address to be attached to a virtual interface or a logical virtual interface
Host name or IP address to be attached to a physical interface
Interface names to be bundled by a virtual interface
Parameters
Use the "hanetobserv" command to change the following information. For information, see Section "7.15 hanetobserv Command".
Monitoring interval
The number of monitoring times
Recovery monitoring period
Cluster switching
Link up waiting period
Remote node information
Use the "hanetobserv" command to change the following information. For information, see Section "7.15 hanetobserv Command".
Remote node name
Virtual IP information (Virtual IP address, Remote physical IP address, Monitoring on/off, Send RIP from remote host on/off, Network information of relaying host)
Virtual gateway information
Use the "hanetgw" command to change the following information. For information, see Section "7.14 hanetgw Command".
Virtual interface
Virtual IP information (Virtual gateway)
[Example 1]
The following shows the procedure for changing the IP address of the communication target of the virtual interface in cluster operation.
Check the setting.
# /opt/FJSVhanet/usr/sbin/hanetobserv print interval(s) = 5 sec times(c) = 5 times idle(p) = 60 sec repair_time(b) = 5 sec fail over mode(f) = YES Destination Host Virtual Address (Router Address+)NIC Address +----------------+-------------------+--------------------------------+ GS 192.168.110.10 192.168.10.10,192.168.20.10 192.168.10.11,192.168.20.11 PQ 192.168.100.20 192.168.10.20,192.168.20.20 |
Stop the cluster operation.
Change the IP address of the communication target.
# /opt/FJSVhanet/usr/sbin/hanetobserv delete -n GS -i 192.168.110.10 # /opt/FJSVhanet/usr/sbin/hanetobserv create -n GS -i 192.168.110.10 -t 192.168.10.20,192.168.20.20 # /opt/FJSVhanet/usr/sbin/hanetobserv create -n GS -i 192.168.110.10 -t 192.168.10.21,192.168.20.21 |
Distribute the changes. Because the "IP address of the remote host monitoring" was changed in a cluster configuration, perform a "reboot the system" procedure, or "execute the resethanet -s command" procedure according to Procedure 2. The following is an execution example in which the system is rebooted.
# /sbin/shutdown -r now |
