Forum Discussion

Martin_Sharratt's avatar
Martin_Sharratt
Icon for Nimbostratus rankNimbostratus
Nov 12, 2014

F5 Failover

Apologies for what is probably a really basic question but I've just inherited this with minimal handover. Anyway, here goes:   We have two F5 LTM's in a Sync-Failover pair. They're load balanci...
application delivery
availability
LTM
management
Eric_St__John's avatar
Eric_St__John
Icon for Employee rankEmployee
Nov 12, 2014

I would fail the appliance over to the standby prior to powering down. If there is a chance that you have an issue with the standby, you'd rather find that out before powering the primary down.

 

There are too many variables to say whether there will be any service outages. If all of your applications are HTTP/HTTPS, you have proper persistence in place, and that persistence is being mirrored if necessary, you shouldn't see a service outage as these are short lived services. If you have long lived services, such as FTP, that have sessions in flight and session and persistence mirroring are enabled, you shouldn't see a service outage.

 

If all/most of your applications are HTTP/HTTPS, and you are using cookie persistence, you should be in good shape.

 

Eric