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Backups on VCStacks running as AMF masters
Page 28 | How to Configure and Use AMF on Allied Telesis Switches
Backups on VCStacks running as AMF masters
When a VCStack or SBx8100 with dual CFCs is running as an AMF master node, it is
important to note that an AMF backup will only occur on the external removable media
installed in the VCS master (or Active CFC). This means that following a failover event, the
new VCS master will not have an AMF backup stored on its external storage media, and will
not be able to provide configuration backup and recovery when required.
To avoid this situation, the recommended solution is to use trigger scripts to automatically
perform a manual backup of the AMF network following a failover event.
Example manual backup activation script called triggered-atmfbackup.scp:
enable
wait 180
atmf backup now
Note:
There is a syntax difference between the configuration commands required to create
the necessary trigger on the SBx8100 and SBx908.
Example trigger script configuration for the SBx8100:
Example trigger script configuration for the SBx908:
If there are multiple AMF master nodes in the network, you may also want to use a trigger
script or perform a manual backup of all master nodes whenever there is a failover event to
ensure that all backups are up to date. Create an atmf working-set group which contains all
master nodes, and then use the atmf working-set command in the trigger script to
execute the manual backup on all nodes within the working set group.
To create a working-set containing all AMF master nodes, first manually select all AMF
masters using the atmf working-set command:
Master#atmf working-set Master1,Master2
===================
Master1, Master2:
===================
Working set join
atmf1[2]#
awplus#conf t
awplus(config)#trigger 1
awplus(config-trigger)#type chassis active-CFC-fail
awplus(config-trigger)#script 1 triggered-atmfbackup.scp
awplus#conf t
awplus(config)#trigger 1
awplus(config-trigger)#type stack master-fail
awplus(config-trigger)#script 1 triggered-atmfbackup.scp