Forum Discussion
MVPHA between GTM
MVPso in this case when I configured them in sync group , both GTM will be active ???!!!
is there any way to make one of them active and the other one on standby
Adminthe sync group is just to make sure all configs are synced when changes are made in the sync group. The individual GTMs will get requests based on the NS records established on zones. If you really want only one to respond, then HA is the way to go, but I'm curious to understand the use case of sidelining one of them?
- Amr_Ali
thanks, JRahm just i wanted to know if it was applicable or not to make thim in HA and make one active and the other one standby like LTM or WAF
- JRahm
It was at one time for sure, and I had one environment when I was a customer that it was required, even though F5 advised against doing so. Here's the guide for that, but version is very old. I'd ask your account team to give you a definitive answer on whether support endorses these days.
- Paulius
Amr_Ali If you would like to have two GTMs in the same location be HA in an active/standby configuration it is possible but it is a big money sink to do such a thing since GTMs themselves are inherently HA when in active/active. You really should have two GTMs run as standalone GTMs in a sync group to keep their DNS configuration synced between them but respond to DNS queries individually. If you had a much high DNS traffic configuration even then you probably wouldn't place the GTMs in active/standby but rather just in a larger group of GTMs so they can all respond to queries and if one fails the rest will continue to respond while you replace the failed GTM. As JRahm stated his article should walk you through an active/standby setup but you really should have your user or group provide information that 100% supports the setup of active/standby GTMs rather than the normal standalone active/active setup that F5 recommends configuring.
