Forum Discussion
irbk
Cirrus
CirrusLoad Balancing with Predictive (member)
We are in the beta test before rolling out the F5 LTM to everyone. Our Load balancing method is currently set to Predicitive (member) at the direction of the F5 contractor that assisted us with our ...
Paulius
MVP
MVPirbk Depending on the persistence type I believe you can use the following command to see what you're looking for.
show ltm persistence persist-records virtual myvirtualserve
irbkCirrus
CirrusThanks for the reply. That shows me the persistance records, which isn't what I'm looking for.
I'm wanting to see the performance numbers the F5 is calculating for each server. That way I can tell management "more traffic should be going to server X because he has the best performace calcuation currently".
Right now if managment asks why all the traffic is going to server X the best I can do is guess and hint vaguely at F5 black magic. This is insufficent resoning to management. I really want a concreet way that I can show from a stastic on the F5 that says "server X has a current performance of <insert number or stat or whatever> vs server Y that has a current performance of <instert number or stat or whatever>, and server Z has a performance of <insert number or stat or whatever> and based off of those numbers the F5 will be sending a majority of traffic to server <insert best performing server based off the predictive stats here>"
- Paulius
irbk Sadly, I am not aware of a command that would provide you the active calculation that is being used to balance traffic for the pool members. It might be visible if you run "show ltm pool <pool_name> all-properties" but I'm not 100% positive on this.
- irbk
Well that's a bummer. I think I may switch the load balancing for a few days from predictive member to round robin. That may make it more obvious if my load is getting balanced correctly or if persistance records are messing with me.