AWS CSA Tips – Placement Groups – Cluster

Pros:

  • Great network – 10 Gbps bandwidth between instances

Cons:

  • If the rack fails, all instances fail at the same time

AWS Definition: Cluster – packs instances close together inside an Availability Zone. This strategy enables workloads to achieve the low-latency network performance necessary for tightly coupled node-to-node communication that is typical of HPC applications.