Before changing the setting of GLS in the copy destination system, configure the following setting.
Modifying the /etc/inet/hosts file
Before changing the setting of GLS, start OS in single user mode, and then set the IP address that is previously specified in "E.1 Designing network of the copy destination system" to the /etc/inet/hosts file. Change the host name if necessary.
Below is the example when changing the IP address of HOST-A in [Design example 1: Fast switching mode - Single system].
[Copy source]
192.168.70.1 host11 # HOST-A Physical IP(1) 192.168.71.1 host12 # HOST-A Physical IP(2) 192.168.80.1 hosta # HOST-A Virtual IP |
[After change]
192.168.170.1 host11 # HOST-A Physical IP(1) 192.168.171.1 host12 # HOST-A Physical IP(2) 192.168.180.1 hosta # HOST-A Virtual IP |
Stopping automatic start of RMS
When cloning the system where GLS is operated by the cluster, configure the setting to stop the automatic start of RMS. By this setting, when starting OS in multi user mode in the copy destination system, the takeover IP address in the copy source system will not be redundantly activated in the copy destination system.
# /opt/SMAW/SMAWRrms/bin/hvsetenv HV_RCSTART 0 |
Starting OS in multi user mode
Start OS in multi user mode to change the setting of GLS. Before starting OS, unplug the NIC cable, stop the copy source system, or connect the copy destination system with the network separated from the copy source system to prevent the duplicated IP address between the copy destination system and the copy source system.
Deleting the setting of takeover virtual interface in GLS
When cloning the system where GLS is operated by the cluster, check that RMS is stopped. After that, delete all the setting of takeover virtual interface.
# /opt/FJSVhanet/usr/sbin/hanethvrsc delete -n all |
Stopping the virtual interface of GLS
Stop the active virtual interface to change the setting of GLS.
# /opt/FJSVhanet/usr/sbin/hanetpoll off # /opt/FJSVhanet/usr/sbin/stphanet |
