This topic describes the features of Elastic Compute Service (ECS) instance families with local SSDs and lists the instance types of each family.

Overview

Instances with local SSDs provide high I/O performance. They are suitable for scenarios that place high demands on storage I/O performance and require a high-availability architecture at the application layer. For example, they are suitable for NoSQL databases, massively parallel processing (MPP) data warehouses, and distributed file systems.

Instances with local SSDs are suitable for enterprises that provide online services such as online gaming, e-commerce, live video streaming, and media. These instances can satisfy the requirements that I/O-intensive applications have for low latency and high I/O performance of Elastic Block Storage (EBS) devices.

Instances with local SSDs have the following features:
  • Deliver up to hundreds of thousands of low-latency random read/write IOPS for large databases.
  • Offer a maximum sequential read/write throughput of several gibibytes per second in big data, parallel computing, and other large dataset scenarios.
  • Use local Non-Volatile Memory Express (NVMe) SSDs to deliver hundreds of thousands of random read/write IOPS with single-digit microsecond latency.
When you use instances with local SSDs, take note of the following items:
  • Instances with local SSDs do not support instance configuration changes or failovers.
  • Local disks can be tied only to specific instance types. The number and capacity of local disks attached to an instance vary based on the instance type. You cannot separately purchase local disks, or detach local disks from the associated instances and then attach the disks to other instances.
  • You cannot create snapshots for local disks. If you want to create an image from the system disk and data disks of an instance with local SSDs, we recommend that you create an image by combining the snapshots of both the system disk and data disks. In this case, the data disks must be cloud disks.
  • You cannot create images that contain snapshots of system disks and data disks based on instance IDs.
  • You can attach a standard SSD to an instance with local SSDs and extend the capacity of the standard SSD.
  • Operations on an instance with local SSDs may affect the data stored on the local SSDs. For more information, see Impacts of instance operations on data stored on local disks.

i3g, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:4, which is designed for high-performance databases.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.2 GHz for consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only enhanced SSDs (ESSDs).
  • Network:
    • Supports IPv6.
    • Provides high network performance based on large computing capacity.
  • Applicable scenarios:
    • Online transaction processing (OLTP) and high-performance relational databases
    • NoSQL databases such as Cassandra, MongoDB, and HBase
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GB) Baseline bandwidth (Gbit/s) Burstable bandwidth (Gbit/s) Packet forwarding rate (pps) Connections NIC queues ENIs Private IP addresses per ENI Disk IOPS Disk bandwidth (Gbit/s)
ecs.i3g.2xlarge 8 32 1 × 480 3 10 1,750,000 250,000 8 4 15 52,500 2
ecs.i3g.4xlarge 16 64 1 × 960 5 10 3,500,000 300,000 8 8 15 84,000 3
ecs.i3g.8xlarge 32 128 2 × 960 12 None 7,000,000 600,000 8 8 30 157,500 5
ecs.i3g.13xlarge 52 192 3 × 960 16 None 12,000,000 900,000 16 8 30 252,000 8
ecs.i3g.26xlarge 104 384 6 × 960 32 None 24,000,000 1,800,000 32 15 30 500,000 16
Note

i3, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency, and allows damaged disks to be isolated online.
  • Compute:
    • Uses 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.2 GHz for consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs.
  • Network:
    • Supports IPv6.
    • Provides high network performance based on large computing capacity.
  • Applicable scenarios:
    • OLTP and high-performance relational databases
    • NoSQL databases such as Cassandra and MongoDB
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GB) Baseline bandwidth (Gbit/s) Burstable bandwidth (Gbit/s) Packet forwarding rate (pps) Connections NIC queues ENIs Private IP addresses per ENI Disk IOPS Disk bandwidth (Gbit/s)
ecs.i3.xlarge 4 32 1 × 960 1.5 10 1,000,000 250,000 4 4 15 40,000 1.5
ecs.i3.2xlarge 8 64 1 × 1,920 2.5 10 1,600,000 250,000 8 4 15 50,000 2
ecs.i3.4xlarge 16 128 2 × 1,920 5 10 3,000,000 300,000 8 8 30 80,000 3
ecs.i3.8xlarge 32 256 4 × 1,920 10 None 6,000,000 600,000 16 8 30 150,000 5
ecs.i3.13xlarge 52 384 6 × 1,920 16 None 9,000,000 900,000 32 7 30 240,000 8
ecs.i3.26xlarge 104 768 12 × 1,920 32 None 24,000,000 1,800,000 32 15 30 480,000 16
Note

i2, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8, which is designed for high-performance databases.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) processors.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Supports IPv6.
    • Provides high network performance based on large computing capacity.
  • Applicable scenarios:
    • OLTP and high-performance relational databases
    • NoSQL databases such as Cassandra, MongoDB, and HBase
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI Disk bandwidth (Gbit/s)
ecs.i2.xlarge 4 32 1 × 894 1 500,000 2 3 10 Up to 16
ecs.i2.2xlarge 8 64 1 × 1,788 2 1,000,000 2 4 10 Up to 16
ecs.i2.4xlarge 16 128 2 × 1,788 3 1,500,000 4 8 20 Up to 16
ecs.i2.8xlarge 32 256 4 × 1,788 6 2,000,000 8 8 20 Up to 16
ecs.i2.16xlarge 64 512 8 × 1,788 10 4,000,000 16 8 20 Up to 16
ecs.i2d.11xlarge 46 356 2 × 3,570 10 2,000,000 16 8 20 Up to 16
ecs.i2d.21xlarge 84 712 4 × 3,570 25 4,000,000 32 16 20 Up to 16
ecs.i2d.23xlarge 92 712 4 × 3,570 25 4,000,000 32 15 20 Up to 16
Note

i2g, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:4, which is designed for high-performance databases.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) 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:
    • OLTP and high-performance relational databases
    • NoSQL databases such as Cassandra, MongoDB, and HBase
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI
ecs.i2g.2xlarge 8 32 1 × 894 2 1,000,000 2 4 10
ecs.i2g.4xlarge 16 64 1 × 1,788 3 1,500,000 4 8 20
ecs.i2g.8xlarge 32 128 2 × 1,788 6 2,000,000 8 8 20
ecs.i2g.16xlarge 64 256 4 × 1,788 10 4,000,000 16 8 20
Note

i2ne, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8, which is designed for high-performance databases.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) processors.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Supports IPv6.
    • Provides high network performance based on large computing capacity.
    • Provides a bandwidth of up to 20 Gbit/s.
  • Applicable scenarios:
    • OLTP and high-performance relational databases
    • NoSQL databases such as Cassandra, MongoDB, and HBase
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI Disk bandwidth (Gbit/s)
ecs.i2ne.xlarge 4 32 1 × 894 1.5 500,000 2 3 10 Up to 16
ecs.i2ne.2xlarge 8 64 1 × 1,788 2.5 1,000,000 2 4 10 Up to 16
ecs.i2ne.4xlarge 16 128 2 × 1,788 5 1,500,000 4 8 20 Up to 16
ecs.i2ne.8xlarge 32 256 4 × 1,788 10 2,000,000 8 8 20 Up to 16
ecs.i2ne.16xlarge 64 512 8 × 1,788 20 4,000,000 16 8 20 Up to 16
Note

i2gne, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:4, which is designed for high-performance databases.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) 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.
    • Provides a bandwidth of up to 20 Gbit/s.
  • Applicable scenarios:
    • OLTP and high-performance relational databases
    • NoSQL databases such as Cassandra, MongoDB, and HBase
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI
ecs.i2gne.2xlarge 8 32 1 × 894 2.5 1,000,000 2 4 10
ecs.i2gne.4xlarge 16 64 1 × 1,788 5 1,500,000 4 8 20
ecs.i2gne.8xlarge 32 128 2 × 1,788 10 2,000,000 8 8 20
ecs.i2gne.16xlarge 64 256 4 × 1,788 20 4,000,000 16 8 20
Note

i1, instance family with local SSDs

Features:
  • This instance family is attached with high-performance local NVMe SSDs that deliver high IOPS, high I/O throughput, and low latency.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:4, which is designed for high-performance databases.
    • 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:
    • OLTP and high-performance relational databases
    • NoSQL databases such as Cassandra and MongoDB
    • Search scenarios that use solutions such as Elasticsearch
Instance types
Instance type vCPU Memory (GiB) Local storage (GiB) Bandwidth (Gbit/s) Packet forwarding rate (pps) NIC queues ENIs Private IP addresses per ENI
ecs.i1.xlarge 4 16 2 × 104 0.8 200,000 1 3 10
ecs.i1.2xlarge 8 32 2 × 208 1.5 400,000 1 4 10
ecs.i1.3xlarge 12 48 2 × 312 2 400,000 1 6 10
ecs.i1.4xlarge 16 64 2 × 416 3 500,000 2 8 20
ecs.i1-c5d1.4xlarge 16 64 2 × 1,456 3 400,000 2 8 20
ecs.i1.6xlarge 24 96 2 × 624 4.5 600,000 2 8 20
ecs.i1.8xlarge 32 128 2 × 832 6 800,000 3 8 20
ecs.i1-c10d1.8xlarge 32 128 2 × 1,456 6 800,000 3 8 20
ecs.i1.14xlarge 56 224 2 × 1,456 10 1,200,000 4 8 20
Note