Forum Discussion
santsboy_145140
Nimbostratus
NimbostratusLTM and ESX Cluster between DCs
Hi,
we have twin DCs (active/active) with only one ESX cluster between DCs. I was thinking of using the best practice design of having 1 GTM and 2 LTM in each DC.
My question is if we have only one ESX cluster in total (also between DCs), which is the benefit of LTM?
Why do we need to disable DRS? will LTM provide DRS capabilities and do vMotion when the VM has high CPU? Do I really need the LTMs?
With 1 ESX cluster, will GTM be able to load balance the traffic between DCs?
Thank you very much.
Regards,
JJBN
The LTM will afford you many more options and granularity for health check types to best determine health of pool members than GTM will. Your GTM will only be responsible for providing resolution for the FQDNs and directing traffic to the proper LTM. It'll be up to the LTM to determine which servers within your ESX environment to send traffic to. You could use just the GTMs to provide DNS resolution and load balancing, but you'd have fewer options.
Cory_50405Noctilucent
The LTM will afford you many more options and granularity for health check types to best determine health of pool members than GTM will. Your GTM will only be responsible for providing resolution for the FQDNs and directing traffic to the proper LTM. It'll be up to the LTM to determine which servers within your ESX environment to send traffic to. You could use just the GTMs to provide DNS resolution and load balancing, but you'd have fewer options.
santsboy_145140Thanks a lot Cory for the clarification
Regards,
JJBN