Help to deploy another cluster for backup

Hi experts, My cluster have 15 node and using E-3.13.0.4 version. My task now is deploy another cluster for backup (in case current cluster down, all clients will auto connect to backup cluster). So please give me suggest about:

  1. The best solution for my version ( dont want to upgrade system)
  2. Any update in client API, current cluster?

Thanks,

Hi @binhpn, setting up XDR would be able to get your data replicated to the second cluster and continue to keep data in sync.

On the client side you would need to implement some sort of switching mechanism in the event of failure, likely needing to restart the clients with the fallback cluster configuration.