Microsoft Azure → Amazon Web Services
AWS equivalent of Proximity placement groups & availability sets
The closest AWS equivalent of Proximity placement groups & availability sets is EC2 placement groups.
About Proximity placement groups & availability sets
| Provider | Microsoft Azure |
|---|---|
| Status | Generally available |
| What it is | A proximity placement group co-locates VMs, scale sets, and availability sets in one datacenter for low latency. Availability sets and scale-set fault domains spread VMs across racks. |
| Documentation | learn.microsoft.com |
| Pricing | Official pricing page |
AWS mappings (1)
| Capability | AWS equivalent | Match |
|---|---|---|
| VM placement control | EC2 placement groups | Partial match |
Scaling, placement & rightsizing(1)
VM placement control Partial match
EC2 placement groups have no single Azure equivalent. Cluster placement maps to proximity placement groups, while spread and partition placement map to availability sets or scale-set fault domains.
- Cluster ↔ proximity placement group. Both co-locate VMs for low latency. Azure pins the group to one datacenter when the first VM deploys, so declare all needed sizes up front (the "intent") to avoid allocation failures.
- Spread and partition ↔ availability sets or fault domains. Azure spreads VMs across fault and update domains inside a datacenter, or across zones with zonal deployments. EC2 spread puts each instance on distinct racks, and partition gives named rack groups (Hadoop, Kafka, Cassandra).
- EC2 also has a "precision time" strategy (hosts close to high-precision time sources). Azure has no named equivalent.