AltocumulusFailover for specific virtual server
Hello everyone,
I'm kinda new on F5 and i'm trying to learn about different failover mechanism.
Let's supose we have an active/standby configuration and each device have 3 virtual server ( A, B and C )each one with their respective pools.
It is possible to trigger a failover event only if virtual server A goes down? i dont care if B or C goes down.
I'm aware of the HA groups and the possibility of trigger a failover event if some pool members are down but i want to know if it is possible for trigger a failover for a specific pool.
Hi VictorRuiz ,
you can do it by HA score configuration , Configure it for the pool that assigned to required virtual server.
I see there is no difference to failover based on virtual server status (UP/Down) because if the virtual server’s pool became down , all traffic destinated to this virtual server would be resetted and F5 marks the virtual server down.
so I see you can confugure HA Group Score.
to configure it follow these article :
https://support.f5.com/csp/article/K42542000
in this article you will find the videos that mihaic sent to you , and I think that this is the only way to meet your requirement.
I want to add.
> you can Isolate your configuration by creating 2 traffic groups , one for virtual server B and C whereas the other for your targgeted virtual sever A , let we name it (Virtual_server_A traffic group) .
> you will create new 2 floating ips address for traffic group 2 and put both of them in Virtual_server_A traffic group , both of floating ips from external and internal vlan subnet respectively ( i mean client/server sides) to listen and forward traffic for the Virtual_server_A traffic group.
also go to (local traffic >> virtual address >> and put your targgeted virtual server A on Virtual_server_A traffic group.
> you can make this traffic group (Virtual_server_A traffic group) Active on the main F5 node with the other traffic group ( virtual server B , C ) , I mean both of traffic groups will be active on one node.> until here , I did not make any differnece only created new traffic group "Virtual_server_A traffic group" and two floating ips (one for client side from external vlan subnet and the other from server side from internal vlan subnet).
> After that follow mihaic video or article K42542000 , as you will go to newly created traffic group (Virtual_server_A traffic group) and configure change its options to failover based on HA Score and create an new HA group score based on Pool and give it a score.
> the effect of this , you will isolate your issue and get a more granular control on "virtual server A" far from the rest of other virtual servers.
Regards.
