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

Instance type change

If you are using a retired instance type, we recommend that you change it to another instance type that is available for purchase. For more information about changes between instance types, see Instance families that support instance type changes.

g5se, storage-enhanced instance family

Features
  • You can create g5se instances only on dedicated hosts.
    Note For more information about instances of other instance types that can be created on dedicated hosts, see Dedicated host types.
  • A single g5se instance attached with enhanced SSDs (ESSDs) can deliver a random IOPS of up to 1,000,000 and a sequential read and write performance of up to 32 Gbit/s.
  • Compute:
    • 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.
    • Provides high storage I/O performance based on large computing capacity.
      Note For more information about the storage I/O performance of the next-generation enterprise-level instance families, see Storage I/O performance.
  • Network:
    • Supports IPv6 addresses.
  • Applicable scenarios:
    • I/O-intensive scenarios such as large and medium-sized online transactional processing (OLTP) core databases
    • Large and medium-sized NoSQL databases
    • Search and real-time log analytics
    • Traditional large enterprise-level commercial software such as SAP
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI Disk IOPS Disk bandwidth (Gbit/s)
ecs.g5se.large 2 8.0 1.0 300,000 2 2 6 30,000 1.5
ecs.g5se.xlarge 4 16.0 1.5 500,000 2 3 6 60,000 2
ecs.g5se.2xlarge 8 32.0 2.0 800,000 2 4 8 85,000 3
ecs.g5se.4xlarge 16 64.0 4.0 1,000,000 4 8 10 150,000 5
ecs.g5se.8xlarge 32 128.0 7.0 2,000,000 8 8 10 300,000 10
ecs.g5se.16xlarge 64 256.0 14.0 3,000,000 16 7 10 750,000 25
ecs.g5se.18xlarge 70 336.0 16.0 4,000,000 16 15 10 1,000,000 32

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.
    Note Instances of this instance family may be deployed on different server platforms. If your business requires all instances to be deployed on the same server platform, we recommend that you use the g6, g6e, or g7 instance family instead.
  • Provides high network performance based on large computing capacity.
  • Applicable scenarios:
    • Enterprise-level applications of various types and scales
    • Small and medium database systems, caches, and search clusters
    • Data analytics and computing
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs
ecs.sn2.medium 2 8.0 0.5 100,000 1 2
ecs.sn2.large 4 16.0 0.8 200,000 1 3
ecs.sn2.xlarge 8 32.0 1.5 400,000 1 4
ecs.sn2.3xlarge 16 64.0 3.0 500,000 2 8
ecs.sn2.7xlarge 32 128.0 6.0 800,000 3 8
ecs.sn2.13xlarge 56 224.0 10.0 1,200,000 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.
    Note Instances of this instance family may be deployed on different server platforms. If your business requires all instances to be deployed on the same server platform, we recommend that you use the c6, c6e, or c7 instance family instead.
  • Provides high network performance based on large computing capacity.
  • Applicable scenarios:
    • Web frontend servers
    • Frontends of massively multiplayer online (MMO) games
    • Data analytics, batch processing, and video encoding
    • High-performance scientific and engineering applications
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs
ecs.sn1.medium 2 4.0 0.5 100,000 1 2
ecs.sn1.large 4 8.0 0.8 200,000 1 3
ecs.sn1.xlarge 8 16.0 1.5 400,000 1 4
ecs.sn1.3xlarge 16 32.0 3.0 500,000 2 8
ecs.sn1.7xlarge 32 64.0 6.0 800,000 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.
  • Offers 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.
  • Applicable scenarios:
    • High-performance web frontend servers
    • High-performance scientific and engineering applications
    • MMO gaming and video encoding
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs
ecs.c4.xlarge 4 8.0 1.5 200,000 1 3
ecs.c4.2xlarge 8 16.0 3.0 400,000 1 4
ecs.c4.3xlarge 12 24.0 4.5 600,000 2 6
ecs.c4.4xlarge 16 32.0 6.0 800,000 2 8
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs
ecs.ce4.xlarge 4 32.0 1.5 200,000 1 3
ecs.ce4.2xlarge 8 64.0 3.0 400,000 1 3
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs
ecs.cm4.xlarge 4 16.0 1.5 200,000 1 3
ecs.cm4.2xlarge 8 32.0 3.0 400,000 1 4
ecs.cm4.3xlarge 12 48.0 4.5 600,000 2 6
ecs.cm4.4xlarge 16 64.0 6.0 800,000 2 8
ecs.cm4.6xlarge 24 96.0 10.0 1,200,000 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.
  • Applicable scenarios:
    • Deep learning
    • Scientific computing applications, such as computational fluid dynamics, computational 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 vCPU Memory (GiB) GPU GPU memory Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI
ecs.gn4-c4g1.xlarge 4 30.0 NVIDIA M40 * 1 12GB * 1 3.0 300,000 1 3 10
ecs.gn4-c8g1.2xlarge 8 30.0 NVIDIA M40 * 1 12GB * 1 3.0 400,000 1 4 10
ecs.gn4.8xlarge 32 48.0 NVIDIA M40 * 1 12GB * 1 6.0 800,000 3 8 20
ecs.gn4-c4g1.2xlarge 8 60.0 NVIDIA M40 * 2 12GB * 2 5.0 500,000 1 4 10
ecs.gn4-c8g1.4xlarge 16 60.0 NVIDIA M40 * 2 12GB * 2 5.0 500,000 1 8 20
ecs.gn4.14xlarge 56 96.0 NVIDIA M40 * 2 12GB * 2 10.0 1,200,000 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.
  • Applicable scenarios:
    • Rendering and multi-media encoding and decoding
    • Machine learning, high-performance computing, and high-performance databases
    • Server-side workloads that require powerful parallel floating-point computing capacity
Instance types
Instance type vCPU Memory (GiB) Local storage (GiB) GPU GPU memory Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI
ecs.ga1.xlarge 4 10.0 1 * 87 AMD S7150 * 1/4 8GB * 1/4 1.0 200,000 1 3 10
ecs.ga1.2xlarge 8 20.0 1 * 175 AMD S7150 * 1/2 8GB * 1/2 1.5 300,000 1 4 10
ecs.ga1.4xlarge 16 40.0 1 * 350 AMD S7150 * 1 8GB * 1 3.0 500,000 2 8 20
ecs.ga1.8xlarge 32 80.0 1 * 700 AMD S7150 * 2 8GB * 2 6.0 800,000 3 8 20
ecs.ga1.14xlarge 56 160.0 1 * 1400 AMD S7150 * 4 8GB * 4 10.0 1,200,000 4 8 20

ebmhfg5, ECS Bare Metal Instance family with high clock speeds

Features
  • Provides dedicated hardware resources and physical isolation.
  • Supports encrypted computing based on Intel® SGX.
  • Has failover disabled by default.

    You can call the ModifyInstanceMaintenanceAttributes operation to modify the maintenance action. Set ActionOnMaintenance to AutoRedeploy to enable failover.

  • Offers a CPU-to-memory ratio of 1:4.
  • Uses 3.7 GHz Intel® Xeon® E3-1240v6 (Skylake) processors that deliver a turbo frequency of 4.1 GHz.
  • Is an instance family in which all instances are I/O optimized.
  • Supports only standard SSDs and ultra disks.
  • Supports only virtual private clouds (VPCs).
  • Provides high network performance with a packet forwarding rate of 2,000,000 pps.
  • Applicable scenarios:
    • Workloads that require direct access to physical resources or that require a license to be bound to the hardware
    • Gaming and finance applications that require high performance
    • High-performance web servers
    • Enterprise-level applications such as high-performance databases
Instance types
Instance type vCPU Memory (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) ENIs Private IP addresses per ENI
ecs.ebmhfg5.2xlarge 8 32 6 2,000,000 6 8

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 have the following features:
      • Innovative NVIDIA Volta architecture
      • 32 GB HBM2 GPU memory
      • CUDA Cores 5120
      • Tensor Cores 640
      • GPU memory bandwidth of up to 900 GB/s
      • Up to six NVLink links and a total bandwidth of 300 GB/s (25 GB/s per NVlink link per direction)
    • 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 Cloud Paralleled File System (CPFS).
  • Network:
    • Supports IPv6 addresses.
    • Supports VPCs.
    • Supports RoCE v2 networks, which are dedicated to low-latency RDMA communication.
  • Applicable scenarios:
    • Ultra-large-scale training for machine learning on a distributed GPU cluster
    • Large-scale high-performance scientific computing and simulations
    • Large-scale data analytics, batch processing, and video encoding
Instance types
Instance type vCPU Memory (GiB) GPU GPU memory Bandwidth (Gbit/s) Packet forwarding rate (pps) RoCE (Gbit/s) NIC queues ENIs Private IP addresses per ENI
ecs.sccgn6ne.24xlarge 96 768.0 NVIDIA V100 * 8 32GB * 8 32.0 4,800,000 100 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 Applicable scenarios:
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
  • In-memory databases
  • Databases with high I/O requirements, such as Oracle and MongoDB
  • Hadoop clusters
  • Large-volume data processing
Instance types
Instance type vCPU 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
Instance types
Instance type vCPU 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
Instance types
Instance type vCPU 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 DDR3 memory.
  • Is an instance family in which instances can be I/O optimized or non-I/O optimized.
I/O optimized instance types support standard SSDs and ultra disks. The following table describes the instance types and their specifications.
Category Instance type vCPU 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 instance types support only basic disks. The following table describes the instance types and their specifications.
Category Instance type vCPU 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

Instance type specifications

Specification Description
Local storage Local storage (also called local disks or cache disks) refers to the disks attached to the physical servers on which ECS instances are hosted. Local storage provides temporary block storage for instances. Local storage capacity is measured in GiB. When the computing resources (vCPUs and memory) of an instance are released or when an instance is failed over, data stored on its local disks may be lost. For more information, see Local disks.
Bandwidth The maximum sum of inbound and outbound bandwidth values.
Note Instance type specifications are all verified and obtained within a test environment. In actual scenarios, the performance of an instance may vary based on other factors such as 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 Best practices for testing network performance.

Note Instance type specifications are all verified and obtained within a test environment. In actual scenarios, the performance of an instance may vary based on other factors such as instance load, image version, and networking model. We recommend that you perform business stress tests on instances to choose appropriate instance types.
Connections A connection (also called a session) is the process of connecting a client and a server and transferring data between them. 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 Internet Control Message Protocol (ICMP) connections.
NIC queues The maximum number of network interface controller (NIC) queues supported by the primary NIC of an instance. For the instance types other than ECS Bare Metal Instance types, the maximum number of NIC queues supported by a secondary NIC is the same as that supported by the primary NIC.
ENI The number of elastic network interfaces (ENIs) per instance that include one primary ENI.