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Forum Discussion

Arturo's avatar
Arturo
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Aug 22, 2013

Causing GTM failover if highest priority group in LTM have failed - iCall?

Hi,   I have two datacenters and F5 is load-balancing a wide IP using topology because I don't want users in DC1 go to VS in DC2. I have configured in the internal LTMs two priority groups. The hi...
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mbrightside0773's avatar
mbrightside0773
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Jul 28, 2014

Hi - Wondering if the iRule solution worked for you? We have a similar situation. We are currently using GA in GTM to prefer Site A all the time due to persistence requirements.

 

However, we want GTM to prefer Site B should x% of the servers fail at Site A.

 

Currently I've considered VS capacity but I think that would mean that should 1 server in the LTM pool fail then that site would be un-preferred by GTM. I've also looked at QoS but not quite sure how the weightings would work.

 

So thinking a GTM iRule monitor might be the way to go?