You can configure the system failover in the configuration mode. Note that you need two imRAD devices to configure the system failover.
LYSH@MyHostName# configure
configure# failover -h
usage: failover [-h] {add,dbpool,delete,disable,enable,show} ...
config ha
positional arguments:
add Add configure system failover
delete Delete system failover configuration
disable Disable system failover
enable Enable system failover
show Show system failover configuration
optional arguments:
-h, --help show this help message and exit
Verifying System Failover Configuration
To read the System Failover Configuration from a file, enter the failover show in the configuration mode.
LYSH@MyHostName# configure configure# failover show vip=192.168.4.140/24 iface=eth0 secret=aaaa host=192.168.4.43 initmode=active curmode= curmode_dt= peermode= peermode_dt= deadtime=2 state=disabled last_error_msg=[2021-04-28 14:07:44] initialized
If you enable the System Failover after configuring, the failover service applies its failover mode in few seconds and you can verify the applied result by the show failover command in the user mode.
LYSH@MyHostName# show failover System failover state.... Failover service(failover.service):active Last updated :2021-04-28 14:08:37 Virtual address :192.168.4.140/24 on eth0 Shared secret :<<aaaa>> Init mode :active Current mode : Current mode updated :- Last error message :[2021-04-28 14:07:44] initialized Peer host :192.168.4.43 Peer mode : Peer mode updated :- Init-Deadtime :30 seconds Deadtime :2 minutes State :disabled
Configuring System Failover
Note that if there the System Failover configuration already exists, it will overwrite.
LYSH@MyHostName# configure configure# failover add 192.168.0.1/24 eth0 mykey 192.168.0.2 active 120 configure# failover show vip=192.168.0.1/24 iface=eth0 secret=mykey host=192.168.0.2 initmode=active curmode= curmode_dt=- peermode= peermode_dt=- deadtime=120 state=disabled last_error_msg=No error
Enabling System Failover
The System Failover does not work before enabling the System Failover.
LYSH@MyHostName# configure configure# failover enable configure# failover show vip=192.168.0.1/24 iface=eth0 secret=mykey host=192.168.0.2 initmode=active curmode= curmode_dt=- peermode= peermode_dt=- deadtime=120 state=enabled last_error_msg=No error configure# exit LYSH@MyHostName# show failover System failover state.... Failover service(failover.service):active Last updated :2021-04-28 14:10:57 Virtual address :192.168.0.1/24 on eth0 Shared secret :<<aaaa>> Init mode :active Current mode :zero Current mode updated :2021-04-28 14:10:56 Last error message :- Peer host :192.168.0.2 Peer mode :no-response Peer mode updated :2021-04-28 14:10:56 Init-Deadtime :30 seconds Deadtime :2 minutes State :enabled
Disabling System Failover
To stop the System Failover, use the disable command.
If you enable the System Failover after disabling it, the System Failover works again.
LYSH@MyHostName# configure configure# failover disable configure# failover show vip=192.168.0.1/24 iface=eth0 secret=mykey host=192.168.0.2 initmode=active curmode= curmode_dt=- peermode= peermode_dt=- deadtime=120 state=disabled last_error_msg=No error
Deleting System Failover configuration
Note that if you deleted it, the System Failover does not work before configuring it.
LYSH@MyHostName# configure configure# failover delete