(All-cores)
(Single-core)
Specifications
Server Metadata
Vendor ID | alicloud |
Name | ecs.r9a.4xlarge |
Description | ecs.r9a family (16 vCPUs, 128 GiB RAM, 0 GB storage) |
Family | ecs.r9a |
Hw Virt | - |
Status | active |
Observed At | 2026-10-28T23:18:20.686774 |
Availability
| REGION / ID | SPOT | ONDEMAND |
|---|
Processor
vCPUs | 16 |
Hypervisor | KVM |
CPU Allocation | Dedicated |
CPU Speed | 2.7 GHz |
CPU Architecture | x86_64 |
CPU Manufacturer | AMD |
CPU Family | EPYC |
CPU Model | 9T25 |
System Resources and Accelerators
| MEMORY | |
|---|---|
Memory Amount | 128 GiB |
| ACCELERATORS | |
|---|---|
Accelerator Count | 0 |
Accelerator Memory Min | 0 MiB |
Accelerator Memory Total | 0 MiB |
Accelerators |
| STORAGE | |
|---|---|
Storage Size | 0 GB |
Storages |
| NETWORK | |
|---|---|
Network Speed Baseline | 12 Gbps |
Inbound Traffic | 0 GB/month |
Outbound Traffic | 0 GB/month |
IPv4 | 0 |
Server Description
A memory-optimized virtual server featuring dedicated AMD EPYC processors and high memory density for demanding database and caching workloads.
Alibaba Cloud ecs.r9a.4xlarge is a memory-optimized virtual machine instance powered by the KVM hypervisor. It features 16 dedicated vCPUs utilizing an AMD EPYC 9T25 processor running at 2.7 GHz on the x86_64 architecture. The instance is provisioned with 128.0 GB of RAM, establishing an 8.0 GB per core memory-to-CPU ratio. It does not include local storage, relying instead on network-attached storage, and delivers a baseline network bandwidth of 12 Gbps. This hardware profile provides a qualitative balance of dedicated compute resources and dense memory capacity, making it highly suitable for memory-intensive workloads. It is recommended for running databases, in-memory caches, enterprise applications, and structured data processing tasks.
Economics
Alternatives
Servers of the Same Family
| INSTANCE | vCPUs | MEMORY | Accelerators |
|---|---|---|---|
| ecs.r9a.large | 2 | 16 GiB | 0 |
| ecs.r9a.xlarge | 4 | 32 GiB | 0 |
| ecs.r9a.2xlarge | 8 | 64 GiB | 0 |
| ecs.r9a.8xlarge | 32 | 256 GiB | 0 |
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