<p>Instance Specifications and Types</p> <p>ECS instances are categorized into different specifications based on the CPU and memory configuration.</p> <p>&bull;&nbsp;&nbsp;&nbsp;&nbsp; <strong>General instances</strong>: The CPU-to-memory ratio of the general instances is 1:4. These instances are applicable to all kinds of general enterprise-level applications. They can be used in small and medium-size databases, cache clusters, and application servers. They are ideal for data analysis and computing, cluster computing, and memory-depended data processing</p> <p>&bull;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Computing instances</strong>: The CPU-to-memory ratio is 1:2. These instances are applicable to all kinds of computing bound applications. For example, web front-end server, data analysis, bulk computing, video coding, high-performance science, and engineering application.</p> <p>&bull;&nbsp;&nbsp;&nbsp;&nbsp; <strong>SSD instances</strong>: With effective I/O and high throughput capacity, these instances are applicable to I/O-intensive businesses. For example, traditional OLTP, high-performance relational database, NoSQL database (like Mongo DB), and searching scenarios such as Elasticsearch.</p> <p>&bull;&nbsp;&nbsp;&nbsp;&nbsp; <strong>Computing-exclusive instances</strong>: With exclusive access to computing resources, computing-extensive instances provide high-performance services equal to that of traditional physical servers. These instances seamlessly connect to Ping An Cloud products and feature secure isolation characteristics of VPC and security groups, thus providing a secure and reliable environment for clients. <strong>Computing-exclusive instances are</strong> elastic and can realize delivery in minutes to meet the business demand of fast deployment. They are designed for scenarios such as databases, critical application systems, and high-performance computing businesses.</p> <p>The following table describes details of ECS instance specifications.</p> <table border="1" cellpadding="0" cellspacing="0" style="width:0px"> <tbody> <tr> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Computing architecture</strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Instance type</strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Instancefamily</strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>CPU parameter </strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Specifications solution</strong></p> </td> <td style="background-color:#ededed; vertical-align:top"> <p><strong>Instance specifications</strong></p> </td> </tr> <tr> <td rowspan="6" style="vertical-align:top"> <p>x86 computing</p> </td> <td style="vertical-align:top"> <p>General</p> </td> <td style="vertical-align:top"> <p>General g4</p> </td> <td style="vertical-align:top"> <p>1: 4</p> </td> <td style="vertical-align:top"> <p>1c4m</p> <p>2c8m</p> <p>4c16m</p> <p>8c32m</p> <p>16c64m</p> <p>32c128m</p> </td> <td style="vertical-align:top"> <p>g4.medium.4</p> <p>g4.large.4</p> <p>g4.xlarge.4</p> <p>g4.2xlarge.4</p> <p>g4.4xlarge.4</p> <p>g4.8xlarge.4</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>General</p> </td> <td style="vertical-align:top"> <p>General g5</p> </td> <td style="vertical-align:top"> <p>1: 4</p> </td> <td style="vertical-align:top"> <p>1c4m</p> <p>2c8m</p> <p>4c16m</p> <p>8c32m</p> </td> <td style="vertical-align:top"> <p>g5.medium.5</p> <p>g5.large.5</p> <p>g5.xlarge.5</p> <p>g5.2xlarge.5</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Computing</p> </td> <td style="vertical-align:top"> <p>Computing c4</p> </td> <td style="vertical-align:top"> <p>1: 1</p> <p>1: 2</p> </td> <td style="vertical-align:top"> <p>1c2m</p> <p>2c4m</p> <p>4c8m</p> <p>8c16m</p> <p>16c16m</p> <p>16c32m</p> <p>32c32m</p> <p>32c64m</p> </td> <td style="vertical-align:top"> <p>c4.medium.2</p> <p>c4.large.2</p> <p>c4.xlarge.2</p> <p>c4.2xlarge.2</p> <p>c4.4xlarge.1</p> <p>c4.4xlarge.2</p> <p>c4.8xlarge.1</p> <p>c4.8xlarge.2</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Computing</p> </td> <td style="vertical-align:top"> <p>Computing c5</p> </td> <td style="vertical-align:top"> <p>1: 2</p> </td> <td style="vertical-align:top"> <p>1c2m</p> <p>2c4m</p> <p>4c8m</p> <p>8c16m</p> <p>&nbsp;</p> <p>&nbsp;</p> </td> <td style="vertical-align:top"> <p>c5.medium.2</p> <p>c5.large.2</p> <p>c5.xlarge.2</p> <p>c5.2xlarge.2</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>SSD</p> </td> <td style="vertical-align:top"> <p>SSD s4</p> </td> <td style="vertical-align:top"> <p>1: 1</p> <p>1: 2</p> <p>1: 4</p> </td> <td style="vertical-align:top"> <p>1c2m</p> <p>1c4m</p> <p>2c2m</p> <p>2c4m</p> <p>2c8m</p> <p>4c4m</p> <p>4c8m</p> <p>4c16m</p> <p>8c8m</p> <p>8c16m</p> <p>8c32m</p> </td> <td style="vertical-align:top"> <p>S4.medium.2</p> <p>S4.medium.4</p> <p>s4.large.1</p> <p>s4.large.2</p> <p>s4.large.4</p> <p>s4.xlarge.1</p> <p>s4.xlarge.2</p> <p>s4.xlarge.4</p> <p>s4.2xlarge.1</p> <p>s4.2xlarge.2</p> <p>s4.2xlarge.4</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>Computing-exclusive</p> </td> <td style="vertical-align:top"> <p>Computing-exclusive c5</p> </td> <td style="vertical-align:top"> <p>1: 4</p> </td> <td style="vertical-align:top"> <p>20c80m</p> <p>40c160m</p> </td> <td style="vertical-align:top"> <p>e5.5xlarge.4</p> <p>e5.10xlarge.4</p> </td> </tr> <tr> <td rowspan="2" style="vertical-align:top"> <p>Heterogeneous computing GPU</p> </td> <td rowspan="2" style="vertical-align:top"> <p>GPU</p> </td> <td style="vertical-align:top"> <p>GPU v1</p> </td> <td style="vertical-align:top"> <p>1: 8</p> </td> <td style="vertical-align:top"> <p>8c60m, v100*1</p> <p>16c120m, v100*2</p> <p>32c240g, v100*4</p> </td> <td style="vertical-align:top"> <p>v1.2xlarge.8</p> <p>v1.4xlarge.8</p> <p>v1.8xlarge.8</p> </td> </tr> <tr> <td style="vertical-align:top"> <p>GPU p1</p> </td> <td style="vertical-align:top"> <p>1: 8</p> </td> <td style="vertical-align:top"> <p>8c60m, p100*1</p> <p>16c120m, p100*2</p> <p>32c240g, p100*4</p> </td> <td style="vertical-align:top"> <p>p1.2xlarge.8</p> <p>p1.4xlarge.8</p> <p>p1.8xlarge.8</p> </td> </tr> </tbody> </table> <p><strong>&nbsp;</strong></p> <p><strong>Specifications Naming Rule</strong></p> <p>AB. C. D&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p> <p>For example, g4.2xlarge.4 &nbsp;&nbsp;&nbsp;&nbsp;</p> <p>A represents the instance type. For example, g represents General, c represents Computing, m represents memory, s represents SSD, v represents GPU v100 (v1 represents v100 (16G cache); v2 represents v100 (32G cache)), and p represents GPU p100.</p> <p>B represents CPU and digit represents the generation of CPU. For example, digit &quot;4&quot; in &quot;g4&quot; represents general 4th generation Broadwell, and digit &quot;4&quot; in d2 represents exclusive 4th generation.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p> <p>C represents specifications of the current series. For example, small (1C, only represents single core and 1G specifications), medium (1C, represents other single core &times; memory specifications), large (2C), xlarge (4C).</p> <p>D represents CPU-to-memory ratio shown with detailed digit. For example, &quot;4&quot; represents the CPU-to-memory ratio is 4.&nbsp;&nbsp;</p> <p>&nbsp;</p> <p><em>&nbsp;</em></p>