GTM health check not working after gtmload/gtmparse

Here's your original post. Not sure what happened to the rendering of it:

 

 

 

We were migrating some VIPs today from the Cisco platform to the F5 on the LTMs. That part went well. However as part of this change we also need to move the VIPs on the GTM from being on its own server definition doing its own health check to a virtual server behind the LTMs we’ve defined on the GTM. Instead of manually transferring removing each server and re-creating them behind the LTM servers on the GTM (and then re-adding them back to the pool), we decided to automate the process by editing the wideip.conf file with the changes we want and running gtmparse/gtmload to install the new file. After doing however, our customers reported problems reaching domains listed in the GTM. We backed out to the original wideip.conf but the problem remains. We found most of the servers not picking up the health check status. We then decided to manually remove problematic VIP entries on the server definition and add them manually on the behind the LTM servers on the GTM. This seem to have fixed the issue.

 

 

Our question now is if there was something missing in the procedure that we have done that would have caused GTM to start failing on the health check for the VIPs?