Amazon Web Services → Microsoft Azure
Azure equivalent of EC2 placement groups
EC2 placement groups have no single Azure equivalent.
About EC2 placement groups
| Provider | Amazon Web Services |
|---|---|
| Status | Generally available |
| What it is | Placement strategies. Cluster packs instances for low-latency HPC. Partition keeps groups on separate racks. Spread puts each instance on distinct hardware. Precision time places instances near high-precision time sources. |
| Documentation | docs.aws.amazon.com |
| Pricing | Official pricing page |
Azure mappings (1)
| Capability | Azure equivalent | Match |
|---|---|---|
| VM placement control | Proximity placement groups & availability sets | 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.