Forum Discussion

Wayne_159516's avatar
Wayne_159516
Icon for Nimbostratus rankNimbostratus
Dec 05, 2014

Can F5 health check / irule update dns A records after checking health?

Can F5 health check / irule update dns A records after checking health? I'm looking to see if the F5 virtual server can also act similar to a Microsoft cluster where if a failover occurs, the cluster...
application delivery
availability
BIG-IP DNS
design
devops
iRules
LTM
cdougall_14195's avatar
cdougall_14195
Icon for Cirrus rankCirrus
Dec 05, 2014

That's usually something that is done with a GTM, DNS manipulation.

 

A thought though. If you're wanting to have traffic go to a different VIP in the event of a failure, you could use the "virtual" command in the iRule to map it across the back plane. Or if in a different datacenter, you could have the VIP as a pool member in a pool using priority groups.

 

Wayne_159516's avatar
Wayne_159516
Icon for Nimbostratus rankNimbostratus
Dec 07, 2014
Please excuse me for asking, but what is the "virtual" command to map it across the back plane? Did you also mean multiple pools for a single LTM VIP or multiple pools for a GTM wide ip?