This topic describes all retired instance types on the China site (aliyun.com). However, instance types sn1, sn2, n1, n2, and e3 are still available for purchase on the International site (alibabacloud.com).

Instance type change

For more information about the configuration changes between instance types, see Instance families that support instance type changes.

sn2, general purpose instance family

Features
  • Offers a CPU-to-memory ratio of 1:4.
  • Uses 2.5 GHz Intel Xeon E5-2682 v4 (Broadwell) or E5-2680 v3 (Haswell) processors for consistent computing performance.
  • Provides high network performance based on large computing capacity.
  • Suits the following scenarios:
    • Enterprise-level applications of various types and sizes
    • Small and medium-sized database systems, caches, and search clusters
    • Data analysis and computing
Instance types
Instance type vCPUs Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs
ecs.sn2.medium 2 8.0 0.5 100 1 2
ecs.sn2.large 4 16.0 0.8 200 1 3
ecs.sn2.xlarge 8 32.0 1.5 400 1 4
ecs.sn2.3xlarge 16 64.0 3.0 500 2 8
ecs.sn2.7xlarge 32 128.0 6.0 800 3 8
ecs.sn2.13xlarge 56 224.0 10.0 1,200 4 8

sn1, compute optimized instance family

Features
  • Offers a CPU-to-memory ratio of 1:2.
  • Uses 2.5 GHz Intel Xeon E5-2682 v4 (Broadwell) or E5-2680 v3 (Haswell) processors for consistent computing performance.
  • Provides high network performance based on large computing capacity.
  • Suits the following scenarios:
    • Web frontend servers
    • Frontends of massively multiplayer online (MMO) games
    • Data analysis, batch processing, and video encoding
    • High-performance scientific and engineering applications
Instance types
Instance type vCPUs Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs
ecs.sn1.medium 2 4.0 0.5 100 1 2
ecs.sn1.large 4 8.0 0.8 200 1 3
ecs.sn1.xlarge 8 16.0 1.5 400 1 4
ecs.sn1.3xlarge 16 32.0 3.0 500 2 8
ecs.sn1.7xlarge 32 64.0 6.0 800 3 8

c4, ce4, and cm4, compute optimized instance families with high clock speeds

Features
  • Uses 3.2 GHz Intel Xeon E5-2667 v4 (Broadwell) processors.
  • Provides consistent computing performance.
  • Is an instance family in which all instances are I/O optimized.
  • Supports only standard SSDs and ultra disks.
  • Provides high network performance based on large computing capacity.
  • Suits the following scenarios:
    • High-performance web frontend servers
    • High-performance scientific and engineering applications
    • MMO gaming and video encoding
c4
Instance type vCPUs Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs
ecs.c4.xlarge 4 8.0 1.5 200 1 3
ecs.c4.2xlarge 8 16.0 3.0 400 1 4
ecs.c4.3xlarge 12 24.0 4.5 600 2 6
ecs.c4.4xlarge 16 32.0 6.0 800 2 8
ce4
Instance type vCPUs Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs
ecs.ce4.xlarge 4 32.0 1.5 200 1 3
ecs.ce4.2xlarge 8 64.0 3.0 400 1 3
cm4
Instance type vCPUs Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs
ecs.cm4.xlarge 4 16.0 1.5 200 1 3
ecs.cm4.2xlarge 8 32.0 3.0 400 1 4
ecs.cm4.3xlarge 12 48.0 4.5 600 2 6
ecs.cm4.4xlarge 16 64.0 6.0 800 2 8
ecs.cm4.6xlarge 24 96.0 10.0 1,200 4 8

gn4, GPU-accelerated compute optimized instance family

Features
  • Uses NVIDIA M40 GPUs.
  • Compute:
    • Offers multiple CPU-to-memory ratios.
    • Uses 2.5 GHz Intel® Xeon® E5-2682 v4 (Broadwell) processors.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Provides high network performance based on large computing capacity.
  • Suits the following scenarios:
    • Deep learning
    • Scientific computing applications such as fluid dynamics, finance, genomics, and environmental analysis
    • Server-side GPU compute workloads such as high-performance computing, rendering, and multi-media encoding and decoding
Instance types
Instance type vCPUs Memory (GiB) GPUs GPU memory Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs Private IP addresses per ENI
ecs.gn4-c4g1.xlarge 4 30.0 NVIDIA M40 × 1 12 GB × 1 3.0 300 1 3 10
ecs.gn4-c8g1.2xlarge 8 30.0 NVIDIA M40 × 1 12 GB × 1 3.0 400 1 4 10
ecs.gn4.8xlarge 32 48.0 NVIDIA M40 × 1 12 GB × 1 6.0 800 3 8 20
ecs.gn4-c4g1.2xlarge 8 60.0 NVIDIA M40 × 2 12 GB × 2 5.0 500 1 4 10
ecs.gn4-c8g1.4xlarge 16 60.0 NVIDIA M40 × 2 12 GB × 2 5.0 500 1 8 20
ecs.gn4.14xlarge 56 96.0 NVIDIA M40 × 2 12GB × 2 10.0 1,200 4 8 20

ga1, GPU-accelerated compute optimized instance family

Features
  • Uses AMD S7150 GPUs.
  • Supports high-performance local NVMe SSDs.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:2.5.
    • Uses 2.5 GHz Intel® Xeon® E5-2682 v4 (Broadwell) processors.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Provides high network performance based on large computing capacity.
  • Suits the following scenarios:
    • Rendering and multimedia encoding and decoding
    • Machine learning, high-performance computing, and high-performance databases
    • Server-side workloads that require powerful concurrent floating-point computing capacity
Instance types
Instance type vCPUs Memory (GiB) Local storage (GiB) GPUs GPU memory Bandwidth (Gbit/s) Packet forwarding rate (Kpps) NIC queues ENIs Private IP addresses per ENI
ecs.ga1.xlarge 4 10.0 1 × 87 AMD S7150 × 1/4 8 GB × 1/4 1.0 200 1 3 10
ecs.ga1.2xlarge 8 20.0 1 × 175 AMD S7150 × 1/2 8 GB × 1/2 1.5 300 1 4 10
ecs.ga1.4xlarge 16 40.0 1 × 350 AMD S7150 × 1 8 GB × 1 3.0 500 2 8 20
ecs.ga1.8xlarge 32 80.0 1 × 700 AMD S7150 × 2 8 GB × 2 6.0 800 3 8 20
ecs.ga1.14xlarge 56 160.0 1 × 1400 AMD S7150 × 4 8 GB × 4 10.0 1,200 4 8 20

sccgn6ne, GPU-accelerated compute optimized SCC instance family

Features
  • Provides all features of ECS Bare Metal Instance.
  • Compute:
    • Uses NVIDIA V100 GPUs (SXM2-based) that feature:
      • Innovative Volta architecture
      • 32 GB HBM2 GPU memory
      • CUDA Cores 5120
      • Tensor Cores 640
      • GPU memory bandwidth of up to 900 Gbit/s
      • Support for up to six NVLink connections and total bandwidth of 300 Gbit/s (25 Gbit/s per connection)
    • Offers a CPU-to-memory ratio of 1:4.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) processors for consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports ESSDs, standard SSDs, and ultra disks.
    • Supports high performance CPFSs.
  • Network:
    • Supports IPv6.
    • Supports VPCs.
    • Supports RoCE v2 networks, which are dedicated to low-latency RDMA communication.
  • Suits the following scenarios:
    • Ultra-large-scale training for machine learning on a distributed GPU cluster
    • Large-scale high performance scientific computing and simulations
    • Large-scale data analysis, batch processing, and video encoding
Instance types
Instance type vCPUs Memory (GiB) GPUs GPU memory Bandwidth (Gbit/s) Packet forwarding rate (Kpps) RoCE (Gbit/s) NIC queues ENIs Private IP addresses per ENI
ecs.sccgn6ne.24xlarge 96 768.0 NVIDIA V100 × 8 32 GB× 8 32.0 4,800 100 16 8 20

n1, n2, and e3, shared instance families

Features
  • Uses 2.5 GHz Intel Xeon E5-2680 v3 (Haswell) processors.
  • Is an instance family in which all instances are I/O optimized.
  • Supports standard SSDs and ultra disks.
  • Provides high network performance based on large computing capacity.
Instance family Description CPU-to-memory ratio Scenario
n1 Shared compute optimized instance family 1:2
  • Small and medium-sized web servers
  • Batch processing
  • Distributed analysis.
  • Advertisement services
n2 Shared general purpose instance family 1:4
  • Medium-sized web servers
  • Batch processing
  • Distributed analysis.
  • Advertisement services
  • Hadoop clusters
e3 Shared memory optimized instance family 1:8
  • Cache/Redis
  • Search applications
  • Memory databases
  • Databases with high I/O requirements, such as Oracle and MongoDB
  • Hadoop clusters
  • Large-volume data processing
n1
Instance type vCPUs Memory (GiB) ENIs
ecs.n1.tiny 1 1.0 1
ecs.n1.small 1 2.0 1
ecs.n1.medium 2 4.0 1
ecs.n1.large 4 8.0 2
ecs.n1.xlarge 8 16.0 2
ecs.n1.3xlarge 16 32.0 2
ecs.n1.7xlarge 32 64.0 2
n2
Instance type vCPUs Memory (GiB) ENIs
ecs.n2.small 1 4.0 1
ecs.n2.medium 2 8.0 1
ecs.n2.large 4 16.0 2
ecs.n2.xlarge 8 32.0 2
ecs.n2.3xlarge 16 64.0 2
ecs.n2.7xlarge 32 128.0 2
e3
Instance type vCPUs Memory (GiB) ENIs
ecs.e3.small 1 8.0 1
ecs.e3.medium 2 16.0 1
ecs.e3.large 4 32.0 2
ecs.e3.xlarge 8 64.0 2
ecs.e3.3xlarge 16 128.0 2

Generation I instance families

Generation I instance families include t1, s1, s2, s3, m1, m2, c1, and c2. All these instance families are legacy shared instance families. They are categorized based on the number of cores such as 1, 2, 4, 8, or 16 cores.

Features
  • Uses Intel Xeon E5-2420 processors with clock speeds of no less than 1.9 GHz.
  • Uses the latest DDR3 memory.
  • Is an instance family in which instances can be I/O optimized or non-I/O optimized.
I/O optimized instances support standard SSDs and ultra disks. The following table describes the instance types and their specifications.
Category Instance type vCPUs Memory (GiB)
Standard ecs.s2.large 2 4
ecs.s2.xlarge 2 8
ecs.s2.2xlarge 2 16
ecs.s3.medium 4 4
ecs.s3.large 4 8
High Memory ecs.m1.medium 4 16
ecs.m2.medium 4 32
ecs.m1.xlarge 8 32
High CPU ecs.c1.small 8 8
ecs.c1.large 8 16
ecs.c2.medium 16 16
ecs.c2.large 16 32
ecs.c2.xlarge 16 64
Non-I/O optimized instances support only basic disks. The following table describes the instance types and their specifications.
Category Instance type vCPUs Memory (GiB)
Tiny ecs.t1.small 1 1
Standard ecs.s1.small 1 2
ecs.s1.medium 1 4
ecs.s1.large 1 8
ecs.s2.small 2 2
ecs.s2.large 2 4
ecs.s2.xlarge 2 8
ecs.s2.2xlarge 2 16
ecs.s3.medium 4 4
ecs.s3.large 4 8
High Memory ecs.m1.medium 4 16
ecs.m2.medium 4 32
ecs.m1.xlarge 8 32
High CPU ecs.c1.small 8 8
ecs.c1.large 8 16
ecs.c2.medium 16 16
ecs.c2.large 16 32
ecs.c2.xlarge 16 64

Description of instance specifications

Specification Description
local storage Local storage, also called cache disks or local disks, refers to the disks attached to the physical servers where ECS instances are hosted. Local storage provides temporary block storage for instances. Local storage capacity is measured in GiB. Data stored on local disks may be lost when the computing resources of an instance are released or when an instance is failed over to a normal physical server. Computing resources include vCPUs and memory. For more information, see Local disks.
bandwidth The maximum sum of inbound and outbound bandwidth values.
Note Each instance specification is verified and obtained in a test environment. In actual scenarios, the performance of an instance may vary based on other factors such as the instance load and networking model. We recommend that you perform business stress tests on instances to choose appropriate instance types.
packet forwarding rate The maximum sum of inbound and outbound packet forwarding rates. For information about how to test the packet forwarding rate, see Test network performance.
Note Each instance specification is verified and obtained in a test environment. In actual scenarios, the performance of an instance may vary based on other factors such as the instance load, image version, and networking model. We recommend that you perform business stress tests on instances to choose appropriate instance types.
connections Connections, also called sessions, are the process of establishing connections and transferring data between a client and a server. A connection is uniquely defined by the network communication quintuple that consists of a source IP address, a destination IP address, a source port, a destination port, and a protocol. Connections of an ECS instance include TCP, UDP, and ICMP connections.
NIC queues The maximum number of NIC queues supported by the primary NIC of an instance. If your instance type is not a member of an ECS Bare Metal Instance family, the maximum number of NIC queues supported by a secondary NIC is the same as that supported by the primary NIC.