This topic describes the features of memory-optimized instance families of Elastic Compute Service (ECS) and lists the instance types of each instance family.

r8a, memory-optimized instance family

Features:
  • This instance family uses the innovative CIPU architecture developed by Alibaba Cloud to provide stable computing power, a more robust I/O engine, and chip-level security hardening.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses AMD EPYC Genoa processors that deliver a turbo frequency of up to 3.7 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
      Note By default, Hyper-Threading is enabled for ECS instances. For more information, see Specify and view CPU options.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Allows enhanced SSDs (ESSDs) to be attached based on the Non-Volatile Memory Express (NVMe) protocol and supports the multi-attach feature to meet the requirements of critical enterprise business. For more information, see NVMe disks and Enable multi-attach.
    • Provides disk burstable IOPS and burstable bandwidth capabilities for low-specification instances.
    • Provides high storage I/O performance based on large computing capacity.
      Note For information about the storage I/O performance of the next-generation enterprise-level instance families, see Storage I/O performance.
  • Network:
    • Supports IPv4 and IPv6.
    • Supports elastic RDMA interfaces (ERIs).
      Note You can implement RDMA-based communication between instances in virtual private clouds (VPCs).
    • Provides ultra-high packet forwarding rates.
    • Provides network burstable bandwidth capabilities for low-specification instances.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • Memory-intensive, general-purpose, enterprise-level applications such as Java
    • Various in-memory database applications such as Redis and Memcache
    • Big data applications such as Kafka and ElasticSearch
    • Audio and video transcoding applications
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsPrivate IPv4 addresses per ENIIPv6 addresses per ENIDisk IOPSDisk bandwidth (Gbit/s)
ecs.r8a.large2161.5/burstable up to 12.5900,000Up to 250,000236625,000/burstable up to 110,0001.5/burstable up to 10
ecs.r8a.xlarge4322.5/burstable up to 12.51,000,000Up to 250,00044151530,000/burstable up to 110,0002/burstable up to 10
ecs.r8a.2xlarge8644/burstable up to 12.51,600,000Up to 250,00084151545,000/burstable up to 110,0002.5/burstable up to 10
ecs.r8a.4xlarge161287/burstable up to 12.52,000,000300,000168303060,000/burstable up to 110,0003.5/burstable up to 10
ecs.r8a.8xlarge3219210/burstable up to 253,000,000600,000328303080,000/burstable up to 110,0005/burstable up to 10
ecs.r8a.12xlarge4825616/254,500,000750,0004883030120,000/none8/burstable up to 10
ecs.r8a.16xlarge6438420/256,000,0001,000,0006483030160,000/none10/none
ecs.r8a.24xlarge9651232/none9,000,0001,500,00064153030240,000/none16/none
ecs.r8a.32xlarge128102440/none12,000,0002,000,00064153030320,000/none20/none
ecs.r8a.48xlarge1921,53664/none18,000,0003,000,00064153030500,000/none32/none
Note
  • You can go to the ECS Instance Types Available for Each Region page to view the instance types available in each region.
  • For more information about these specifications, see the "Instance type specifications" section in Instance family.
  • You can change between instance types within the r8a instance family.
  • For ecs.r8a.large and ecs.r8a.xlarge instances, you must enable Jumbo Frames before the instances can burst their network bandwidths to 12.5 Gbit/s. For more information, see Jumbo frames.

r8y, memory-optimized instance family

Features:
  • This instance family uses in-house ARM-based YiTian 710 processors and the fourth-generation SHENLONG architecture to provide predictable and consistent ultra-high performance. This instance family utilizes fast path acceleration on chips to improve storage performance, network performance, and computing stability by an order of magnitude.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.75 GHz YiTian 710 processors to provide consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs.
    • Provides high storage I/O performance based on large computing capacity.
    • Allows ESSDs to be attached based on the NVMe protocol and supports the multi-attach feature to meet the requirements of core enterprise business. For more information, see NVMe disks and Enable multi-attach.
  • Network:
    • Supports IPv6.
    • Provides ultra-high packet forwarding rates.
    • Provides burstable network bandwidth capabilities for low-specification instances.
    • Provides high network performance based on large computing capacity.
    • Supports elastic RDMA (eRDMA) and only a single ERI per instance.
  • Supported scenarios:
    • Containers and microservices
    • Websites and application servers
    • Video encoding and decoding
    • High-performance computing
    • CPU-based machine learning
  • YiTian ECS Booster:

    After you select Booster, the applications that you select are automatically deployed on your YiTian instances and are individually performance-tuned by KeenTune.

    KeenTune is a full-stack operating system tuning software powered by a knowledge base that collects knowledge and experience from experts across multiple fields at Alibaba Cloud. KeenTune provides full-stack performance tuning for YiTian instances in terms of CPUs, memory, I/O, and networks based on the instance characteristics and helps tune applications to optimize the runtime for your business.

    Full-stack performance tuning for Booster maximizes the performance benefits of YiTian instances and improves performance by about 20% on the average in typical scenarios such as MySQL, NGINX, Redis, and PostgreSQL to help you reduce costs and increase efficiency.

    If you do not want to use this feature after you purchase an instance, you can run /tmp/keentune_remove.sh on the instance to uninstall KeenTune and relevant applications. For more information about KeenTune, see KeenTune.

Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsERIsPrivate IPv4 addresses per ENIIPv6 addresses per ENIMaximum attached data disksDisk IOPSDisk bandwidth (Gbit/s)
ecs.r8y.small181/10500,000Up to 250,00012033510,000/burstable up to 110,0001/burstable up to 6
ecs.r8y.large2162/10900,000Up to 250,00023166820,000/burstable up to 110,0001.5/burstable up to 6
ecs.r8y.xlarge4323/101,000,000Up to 250,0004411515840,000/burstable up to 110,0002/burstable up to 6
ecs.r8y.2xlarge8645/101,600,000Up to 250,00084115151650,000/burstable up to 110,0003/burstable up to 6
ecs.r8y.4xlarge1612810/163,000,000400,00088130301680,000/burstable up to 110,0005/burstable up to 6
ecs.r8y.8xlarge3225616/none5,000,000750,0001681303016125,0008
ecs.r8y.16xlarge6451232/none10,000,0001,500,0003281303016250,00016
ecs.r8y.32xlarge128102464/none20,000,0003,000,00032151303016500,00032
Note

r7se, storage-enhanced memory-optimized instance family

Features:
  • This instance family uses the third-generation SHENLONG architecture and Intel Ice Lake processors to improve storage I/O performance.
  • This instance family delivers a sequential read/write throughput of up to 64 Gbit/s and up to 1,000,000 IOPS per instance.
  • This instance family allows ESSDs to be attached based on the NVMe protocol and supports the multi-attach feature to meet the requirements of core enterprise business. For information about disks that support NVMe, see Overview of disks that support NVMe. For information about how to enable multi-attach, see Enable multi-attach.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses third-generation Intel® Xeon® Scalable (Ice Lake) processors that deliver a base frequency of 2.7 GHz and an all-core turbo frequency of 3.5 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
      Note By default, Hyper-Threading is enabled on ECS instances. For more information, see Specify and view CPU options.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs and provides ultra-high I/O performance.
    • Allows a maximum of 64 data disks to be attached per instance. When you create an instance, you can attach a maximum of 16 data disks to the instance. If the instance requires more data disks, you can attach more data disks after the instance is created. For more information, see Attach a data disk.
    • 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.
    • Provides ultra-high packet forwarding rates.
    • Provides high network performance based on large computing capacity.
  • Supported 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
    • High-density deployment of containers
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsPrivate IPv4 addresses per ENIIPv6 addresses per ENIMaximum attached data disksDisk baseline/burst IOPSDisk baseline/burst bandwidth (Gbit/s)
ecs.r7se.large2161.2/burstable up to 3450,000Up to 250,00023661630,000/burstable up to 150,0003/10
ecs.r7se.xlarge4322/burstable up to 5500,000Up to 250,0004415151660,000/burstable up to 150,0004/10
ecs.r7se.2xlarge8643/burstable up to 8800,000Up to 250,00084151516100,000/burstable up to 150,0006/10
ecs.r7se.3xlarge12964.5/burstable up to 101,200,000Up to 250,00088151516120,000/burstable up to 150,0008/10
ecs.r7se.4xlarge161286/burstable up to 101,500,000300,00088303024150,000/none10/none
ecs.r7se.6xlarge241928/burstable up to 102,250,000450,000128303024200,000/none12/none
ecs.r7se.8xlarge3225610/none3,000,000600,000168303030300,000/none16/none
ecs.r7se.16xlarge6451216/none6,000,0001,200,000328303056500,000/none32/none
ecs.r7se.32xlarge128102432/none12,000,0002,400,00032153030641,000,000/none64/none
Note

r7a, memory-optimized instance family

Features:
  • This instance family uses the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance. This instance family utilizes fast path acceleration on chips to improve storage performance, network performance, and computing stability by an order of magnitude.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.55 GHz AMD EPYCTM MILAN processors that deliver a maximum single-core turbo frequency of 3.5 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
      Note By default, Hyper-Threading is enabled on ECS instances. For more information, see Specify and view CPU options.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs.
    • Provides disk burstable IOPS and burstable bandwidth capabilities for low-specification instances.
    • 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.
    • Provides ultra-high packet forwarding rates.
    • Provides burstable network bandwidth capabilities for low-specification instances.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • High-performance databases and in-memory databases
    • Scenarios where large volumes of packets are received and transmitted, such as on-screen video comments and telecom data forwarding
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
    • Blockchain applications
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsPrivate IPv4 addresses per ENIIPv6 addresses per ENIDisk baseline/burst IOPSDisk baseline/burst bandwidth (Gbit/s)
ecs.r7a.large2161/burstable up to 10900,000Up to 250,000236612,500/burstable up to 110,0001/burstable up to 6
ecs.r7a.xlarge4321.5/burstable up to 101,000,000Up to 250,00044151520,000/burstable up to 110,0001.5/burstable up to 6
ecs.r7a.2xlarge8642.5/burstable up to 101,600,000Up to 250,00084151530,000/burstable up to 110,0002/burstable up to 6
ecs.r7a.4xlarge161285/burstable up to 102,000,000300,00088303060,000/burstable up to 110,0003/burstable up to 6
ecs.r7a.8xlarge322568/burstable up to 103,000,000600,000167303075,000/burstable up to 110,0004/burstable up to 6
ecs.r7a.16xlarge6451216/none6,000,0001,000,0003273030150,000/none8/none
ecs.r7a-nps1.16xlarge6451216/none6,000,0001,000,0003273030150,000/none8/none
ecs.r7a.32xlarge128102432/none12,000,0002,000,00032153030300,000/none16/none
Note
  • You can go to the ECS Instance Types Available for Each Region page to view the instance types available in each region.
  • For more information about these specifications, see the "Instance type specifications" section in Instance type specifications.
  • Ubuntu 16 and Debian 9 operating system kernels do not support AMD EPYCTM MILAN processors. Do not use Ubuntu 16 or Debian 9 images to create instances of this instance family. Instances of this instance family created from Ubuntu 16 or Debian 9 images cannot start.

r7, memory-optimized instance family

Features:
  • This instance family uses the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance. This instance family utilizes fast path acceleration on chips to improve storage performance, network performance, and computing stability by an order of magnitude.
  • This instance family supports the virtual Trusted Platform Module (vTPM) feature and implements trusted boot based on Trusted Cryptography Module (TCM) or Trusted Platform Module (TPM) chips to provide ultra-high security capabilities. During a trusted boot, all modules in the boot chain from the underlying server to the ECS instance are measured and verified.
  • This instance family supports the Enclave feature and provides a virtualization-based confidential computing environment. For more information, see Build a confidential computing environment by using Enclave.
    Note The Enclave feature is in invitational preview. If you want to use this feature, go to the Enclave product page to submit an application.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses third-generation Intel® Xeon® Scalable (Ice Lake) processors that deliver a base frequency of 2.7 GHz and an all-core turbo frequency of 3.5 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs.
    • Provides burstable storage I/O performance for low-specification instances.
    • Provides high storage I/O performance based on large computing capacity.
  • Network:
    • Supports IPv6.
    • Provides ultra-high packet forwarding rates.
    • Provides burstable network performance for low-specification instances.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • High-performance databases and in-memory databases
    • Scenarios where large volumes of packets are received and transmitted, such as on-screen video comments and telecom data forwarding
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
    • Scenarios that require secure and trusted computing
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)Support for vTPMConnectionsNIC queuesENIPrivate IPv4 addresses per ENIIPv6 addresses per ENIMaximum attached data disksDisk baseline/burst IOPSDisk baseline/burst bandwidth (Gbit/s)
ecs.r7.large2162/burstable up to 10900,000YesUp to 250,0002366820,000/burstable up to 110,0001.5/burstable up to 6
ecs.r7.xlarge4323/burstable up to 101,000,000YesUp to 250,000441515840,000/burstable up to 110,0002/burstable up to 6
ecs.r7.2xlarge8645/burstable up to 101,600,000YesUp to 250,0008415151650,000/burstable up to 110,0003/burstable up to 6
ecs.r7.3xlarge12968/burstable up to 102,400,000YesUp to 250,0008815151670,000/burstable up to 110,0004/burstable up to 6
ecs.r7.4xlarge1612810/burstable up to 253,000,000Yes300,0008830301680,000/burstable up to 110,0005/burstable up to 6
ecs.r7.6xlarge2419212/burstable up to 254,500,000Yes450,000128303016110,000/none6/none
ecs.r7.8xlarge3225616/burstable up to 256,000,000Yes600,000168303024150,000/none8/none
ecs.r7.16xlarge6451232/none12,000,000Yes1,200,000328303032300,000/none16/none
ecs.r7.32xlarge128102464/none24,000,000Yes2,400,0003215303032600,000/none32/none
Note
  • We recommend that you connect to Windows instances by using Workbench. If you use Virtual Network Computing (VNC) to log on to a Windows instance, two cursors may appear. For information about how to resolve this issue, see the "Why do two cursors appear after I log on to a Windows instance by using a VNC management terminal?" section in Instance FAQ.
  • You can go to the ECS Instance Types Available for Each Region page to view the instance types available in each region.
  • For more information about these specifications, see the "Instance type specifications" section in Instance type specifications.

r7t, security-enhanced memory-optimized instance family

Features:
  • This instance family supports up to 512 GiB of encrypted memory and encrypted computing based on Intel® Software Guard Extensions (SGX) to protect the confidentiality and integrity of essential code and data from malware attacks.
  • This instance family supports Virtual SGX (vSGX) and allows you to select instance types that suit your needs.
    Important If you use keys (such as SGX sealing keys) that are bound to hardware to encrypt the data of an instance within an Intel SGX enclave, the encrypted data cannot be decrypted after the host of the instance is changed. We recommend that you perform data redundancy and backup at the application layer to ensure application reliability.
  • This instance family implements trusted boot based on TCM or TPM chips. During a trusted boot, all modules in the boot chain from the underlying server to the guest operating system are measured and verified.
  • This instance family offloads a large number of virtualization features to dedicated hardware with the use of the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8. About 50% of memory is encrypted.
    • Uses third-generation Intel® Xeon® Scalable (Ice Lake) processors that deliver a base frequency of 2.7 GHz and an all-core turbo frequency of 3.5 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs.
    • Provides high storage I/O performance based on large computing capacity.
  • Network:
    • Supports IPv6.
    • Provides ultra-high packet forwarding rates.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • Encrypted computing applications for databases
    • Scenarios that involve sensitive information such as personal identity information, healthcare information, financial information, and intellectual property data
    • Scenarios where confidential data is shared among multiple parties
    • Blockchain scenarios
    • Confidential machine learning
    • Scenarios that require high security and enhanced trust, such as services for financial organizations, public service sectors, and enterprises
    • Enterprise-level applications of various types and sizes
Instance types
Instance typevCPUsMemory (GiB)Encrypted memory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)Support for vTPMConnectionsNIC queuesENIsPrivate IPv4 addresses per ENIIPv6 addresses per ENIDisk baseline/burst IOPSDisk baseline/burst bandwidth (Gbit/s)
ecs.r7t.large21682/burstable up to 10900,000YesUp to 250,000236620,000/burstable up to 110,0001.5/burstable up to 6
ecs.r7t.xlarge432163/burstable up to 101,000,000YesUp to 250,00044151540,000/burstable up to 110,0002/burstable up to 6
ecs.r7t.2xlarge864325/burstable up to 101,600,000YesUp to 250,00084151550,000/burstable up to 110,0003/burstable up to 6
ecs.r7t.3xlarge1296488/burstable up to 102,400,000YesUp to 250,00088151570,000/burstable up to 110,0004/burstable up to 6
ecs.r7t.4xlarge161286410/burstable up to 253,000,000Yes300,00088303080,000/burstable up to 110,0005/burstable up to 6
ecs.r7t.6xlarge241929612/burstable up to 254,500,000Yes450,0001283030110,000/none6/none
ecs.r7t.8xlarge3225612816/burstable up to 256,000,000Yes600,0001683030150,000/none8/none
ecs.r7t.16xlarge6451225632/none12,000,000Yes1,200,0003283030300,000/none16/none
ecs.r7t.32xlarge128102451264/none24,000,000Yes2,400,00032153030600,000/none32/none
Note
  • Intel Ice Lake supports only remote attestation based on Intel Software Guard Extensions Data Center Attestation Primitives (Intel SGX DCAP), and does not support remote attestation based on Intel Enhanced Privacy ID (EPID). You must adapt applications before you can use the remote attestation feature. For more information about remote attestation, see Strengthen Enclave Trust with Attestation.
  • Intel SGX depends on host hardware. This instance family does not support hot migration.
  • Operations such as changing instance types and enabling economical mode may cause the host of an instance to change. Changes to the host of an instance of this instance family may cause failures to decrypt data. Proceed with caution.
  • By default, auto failover is disabled. You can enable it. For more information, see Modify instance maintenance attributes. Auto failover causes the host of an instance to change. Changes to the host of an instance of this instance family may cause failures to decrypt data. Proceed with caution.
  • When you create a security-enhanced instance, you must select a dedicated image to use the security features. For more information, see Create a security-enhanced instance.
  • You can go to the ECS Instance Types Available for Each Region page to view the instance types available in each region.
  • For more information about these specifications, see the "Instance type specifications" section in Instance type specifications.

re6p, persistent memory-optimized instance family

For information about frequently asked questions about persistent memory-optimized instances, see Instance FAQ.

Features:
  • This instance family uses Intel® OptaneTM persistent memory.
    Important The reliability of data stored in persistent memory depends on the reliability of persistent memory devices and the physical servers to which these devices are attached. This increases the risks of single points of failure (SPOFs). To ensure the reliability of application data, we recommend that you implement data redundancy at the application layer and use cloud disks for long-term data storage.
  • This instance family allows persistent memory to be used as memory or as local SSDs on instances of some instance types.
    Note For more information, see Configure the usage mode of persistent memory.
  • This instance family provides the ecs.re6p-redis.<nx>large instance types for Redis applications.
    Note ecs.re6p-redis.<nx>large instance types are exclusively provided for Redis applications. Persistent memory on instances of these instance types is used as memory by default and cannot be re-configured as local SSDs. For more information about how to deploy a Redis application, see Deploy Redis on persistent memory-optimized instances.
  • Compute:
    • Uses 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.2 GHz to provide consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports ESSDs, standard SSDs, and ultra disks.
  • Network:
    • Supports IPv6.
    • Supports only virtual private clouds (VPCs).
  • Supported scenarios:
    • Redis and other NoSQL databases such as Cassandra and MongoDB
    • Structured databases such as MySQL
    • I/O-intensive applications such as e-commerce, online games, and media applications
    • Search scenarios that use solutions such as Elasticsearch
    • Live video streaming, instant messaging, and room-based online games that require persistent connections
    • High-performance relational databases and OLTP systems
Instance types
Instance typevCPUsMemory (GiB)Persistent memory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsDisk IOPSDisk bandwidth (Gbit/s)
ecs.re6p.large2831.51/3300,000Up to 250,0002210,0001
ecs.re6p.xlarge416631.5/5500,000Up to 250,0004320,0001.5
ecs.re6p.2xlarge8321262.5/10800,000Up to 250,0008425,0002
ecs.re6p.13xlarge5219275612.5/none3,000,000900,000327100,0008
ecs.re6p.26xlarge1043841,51225/none6,000,0001,800,0003215200,00016,0
ecs.re6p-redis.large2831.51/3300,000Up to 250,0002210,0001
ecs.re6p-redis.xlarge416631.5/5500,000Up to 250,0004320,0001.5
ecs.re6p-redis.2xlarge8321262.5/10800,000Up to 250,0008425,0002
ecs.re6p-redis.13xlarge5219275612.5/none3,000,000900,000327100,0008
Note

r6a, memory-optimized instance family

Features:
  • This instance family offloads a large number of virtualization features to dedicated hardware with the use of the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.6 GHz AMD EPYCTM ROME processors that deliver a turbo frequency of 3.3 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
      Note By default, Hyper-Threading is enabled on ECS instances. For more information, see Specify and view CPU options.
  • 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.
    • Provides ultra-high packet forwarding rates.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • Video encoding and decoding
    • Scenarios where large volumes of packets are received and transmitted
    • In-memory databases
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
    • Scenarios where applications such as DevOps applications are developed and tested
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsPrivate IP addresses per ENIDisk IOPSDisk bandwidth (Gbit/s)
ecs.r6a.large2161/10900,000Up to 250,00022612,5001
ecs.r6a.xlarge4321.5/101,000,000Up to 250,000531520,0001.5
ecs.r6a.2xlarge8642.5/101,600,000Up to 250,000841530,0002
ecs.r6a.4xlarge161285/102,000,000300,000883060,0003
ecs.r6a.8xlarge322568/103,000,000600,0001673075,0004,0
ecs.r6a.16xlarge6451216/none6,000,0001,000,00032830150,0008
Note

r6e, memory-optimized instance family with enhanced performance

Features:
  • This instance family offloads a large number of virtualization features to dedicated hardware with the use of the third-generation SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads. This instance family utilizes fast path acceleration on chips to improve storage performance, network performance, and computing stability by an order of magnitude.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.2 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
      Note By default, Hyper-Threading is enabled on ECS instances. For more information, see Specify and view CPU options.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only ESSDs.
    • Provides high network and 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.
    • Provides ultra-high packet forwarding rates.
      Note Network performance varies based on instance families. For higher concurrent connection and network packet forwarding capabilities, we recommend that you use g7ne.
  • Supported scenarios:
    • Scenarios where large volumes of packets are received and transmitted, such as on-screen video comments and telecom data forwarding
    • High-performance databases and in-memory databases
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsPrivate IP addresses per ENIDisk IOPSDisk bandwidth (Gbit/s)
ecs.r6e.large2161.2/burstable up to 10900,000Up to 250,00023620,0001
ecs.r6e.xlarge4322/burstable up to 101,000,000Up to 250,000441540,0001.5
ecs.r6e.2xlarge8643/burstable up to 101,600,000Up to 250,000841550,0002
ecs.r6e.4xlarge161286/burstable up to 103,000,000300,000883080,0003
ecs.r6e.8xlarge3225610/none6,000,000600,00016830150,0005
ecs.r6e.13xlarge5238416/none9,000,0001,000,00032730240,0008
ecs.r6e.26xlarge10476832/none24,000,0001,800,000321530480,00016
Note
  • You can go to the ECS Instance Types Available for Each Region page to view the instance types available in each region.
  • For more information about these specifications, see the "Instance type specifications" section in Instance type specifications.
  • The results for network capabilities are the maximum values obtained from single-item tests. For example, when network bandwidth is tested, no stress tests are performed on the packet forwarding rate or other network metrics.

r6, memory-optimized instance family

Features:
  • This instance family offloads a large number of virtualization features to dedicated hardware with the use of the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.2 GHz to provide consistent computing performance.
    • Allows you to enable or disable Hyper-Threading.
      Note By default, Hyper-Threading is enabled on ECS instances. For more information, see Specify and view CPU options.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports ESSDs, standard SSDs, and ultra disks.
      Note The maximum performance of disks varies based on instance families. A single instance of this instance family can deliver up to 200,000 IOPS.
    • 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.
    • Provides ultra-high packet forwarding rates.
    • Provides high network performance based on large computing capacity.
  • Supports changes to g6 or c6 instance types.
  • Supported scenarios:
    • Scenarios where large volumes of packets are received and transmitted, such as on-screen video comments and telecom data forwarding
    • High-performance databases and in-memory databases
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Instance types
Instance typevCPUsMemory (GiB)Network baseline/burst bandwidth (Gbit/s)Packet forwarding rate (pps)ConnectionsNIC queuesENIsPrivate IP addresses per ENIDisk IOPSDisk bandwidth (Gbit/s)
ecs.r6.large2161/burstable up to 3300,000Up to 250,00022610,0001
ecs.r6.xlarge4321.5/burstable up to 5500,000Up to 250,000431020,0001.5
ecs.r6.2xlarge8642.5/burstable up to 8800,000Up to 250,000841025,0002
ecs.r6.3xlarge12964/burstable up to 10900,000Up to 250,000861030,0002.5
ecs.r6.4xlarge161285/burstable up to 101,000,000300,000882040,0003
ecs.r6.6xlarge241927.5/burstable up to 101,500,000450,0001282050,0004
ecs.r6.8xlarge3225610/none2,000,000600,0001682060,0005
ecs.r6.13xlarge5238412.5/none3,000,000900,00032720100,0008
ecs.r6.26xlarge10476825/none6,000,0001,800,000321520200,00016
Note

re6, high-memory instance family

Features:
  • This instance family is optimized for high-performance databases, in-memory databases, and enterprise-level memory-intensive applications.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:15 and up to 3 TiB of memory.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8269CY (Cascade Lake) processors that deliver a turbo frequency of 3.2 GHz to provide consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports ESSDs, standard SSDs, and ultra disks.
  • Network:
    • Supports IPv6.
  • Supported scenarios:
    • High-performance databases and in-memory databases such as SAP HANA
    • Memory-intensive applications
    • Big data processing engines such as Apache Spark and Presto
Instance types
Instance typevCPUsMemory (GiB)Network bandwidth (Gbit/s)Packet forwarding rate (pps)NIC queuesENIsPrivate IP addresses per ENIDisk IOPSDisk bandwidth (Gbit/s)
ecs.re6.4xlarge162565900,000872025,0002
ecs.re6.8xlarge32512101,800,0001672050,0004
ecs.re6.13xlarge52768101,800,0001672050,0004
ecs.re6.16xlarge641024163,000,00032720100,0008
ecs.re6.26xlarge1041,536163,000,00032720100,0008
ecs.re6.32xlarge1282,048326,000,000321520200,00016
ecs.re6.52xlarge2083,072326,000,000321520200,00016
Note

r5, memory-optimized instance family

Features:
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) or Intel® Xeon® Platinum 8269CY (Cascade Lake) processors to provide 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 r6, r6e, or r7 instance family instead.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports ESSDs, standard SSDs, and ultra disks.
      Note The maximum performance of disks varies based on instance families. A single instance of this instance family can deliver up to 200,000 IOPS.
  • Network:
    • Supports IPv6.
    • Provides ultra-high packet forwarding rates.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • Scenarios where large volumes of packets are received and transmitted, such as on-screen video comments and telecom data forwarding
    • High-performance databases and in-memory databases
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Instance types
Instance typevCPUsMemory (GiB)Network bandwidth (Gbit/s)Packet forwarding rate (pps)NIC queuesENIsPrivate IP addresses per ENI
ecs.r5.large2161300,000226
ecs.r5.xlarge4321.5500,0002310
ecs.r5.2xlarge8642.5800,0004410
ecs.r5.3xlarge12964900,0004610
ecs.r5.4xlarge1612851,000,0004820
ecs.r5.6xlarge241927.51,500,0006820
ecs.r5.8xlarge32256102,000,0008820
ecs.r5.16xlarge64512204,000,00016820
Note

re4, high-memory instance family

Features:
  • This instance family is optimized for high-performance databases, in-memory databases, and enterprise-level memory-intensive applications.
  • The ecs.re4.20xlarge and ecs.re4.40xlarge instance types are SAP HANA-certified.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:12 and up to 1,920 GiB of memory.
    • Uses 2.2 GHz Intel® Xeon® E7 8880 v4 (Broadwell) processors that deliver a maximum turbo frequency of 2.4 GHz to provide consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Supports IPv6.
  • Supported scenarios:
    • High-performance databases and in-memory databases such as SAP HANA
    • Memory-intensive applications
    • Big data processing engines such as Apache Spark and Presto
Instance types
Instance typevCPUsMemory (GiB)Network bandwidth (Gbit/s)Packet forwarding rate (pps)NIC queuesENIsPrivate IP addresses per ENI
ecs.re4.10xlarge4048081,000,0008410
ecs.re4.20xlarge80960152,000,00016820
ecs.re4.40xlarge1601,920304,500,00016820
Note

re4e, high-memory instance family

Features:
  • This instance family is optimized for high-performance databases, in-memory databases, and enterprise-level memory-intensive applications.
  • Compute:
    • Offers a CPU-to-memory ratio of 1:24 and up to 3,840 GiB of memory.
    • Uses 2.2 GHz Intel® Xeon® E7 8880 v4 (Broadwell) processors that deliver a maximum turbo frequency of 2.4 GHz to provide consistent computing performance.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Supports IPv6.
  • Supported scenarios:
    • High-performance databases and in-memory databases such as SAP HANA
    • Memory-intensive applications
    • Big data processing engines such as Apache Spark and Presto
Instance types
Instance typevCPUsMemory (GiB)Network bandwidth (Gbit/s)Packet forwarding rate (pps)NIC queuesENIsPrivate IP addresses per ENI
ecs.re4e.40xlarge1603,840304,500,000161520
Note

se1ne, network-enhanced memory-optimized instance family

Features:
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.5 GHz Intel® Xeon® E5-2682 v4 (Broadwell) or Intel® Xeon® Platinum 8163 (Skylake) processors to provide 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 r6, r6e, or r7 instance family instead.
  • Storage:
    • Is an instance family in which all instances are I/O optimized.
    • Supports only standard SSDs and ultra disks.
  • Network:
    • Supports IPv6.
    • Provides ultra-high packet forwarding rates.
    • Provides high network performance based on large computing capacity.
  • Supported scenarios:
    • Scenarios where large volumes of packets are received and transmitted, such as on-screen video comments and telecom data forwarding
    • High-performance databases and in-memory databases
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Instance types
Instance typevCPUsMemory (GiB)Network bandwidth (Gbit/s)Packet forwarding rate (pps)NIC queuesENIsPrivate IP addresses per ENI
ecs.se1ne.large2161300,000226
ecs.se1ne.xlarge4321.5500,0002310
ecs.se1ne.2xlarge86421,000,0004410
ecs.se1ne.3xlarge12962.51,300,0004610
ecs.se1ne.4xlarge1612831,600,0004820
ecs.se1ne.6xlarge241924.52,000,0006820
ecs.se1ne.8xlarge3225662,500,0008820
ecs.se1ne.14xlarge56480104,500,00014820
Note

se1, memory-optimized instance family

Features:
  • Compute:
    • Offers a CPU-to-memory ratio of 1:8.
    • Uses 2.5 GHz Intel® Xeon® E5-2682 v4 (Broadwell) processors to provide consistent computing performance.
  • 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.
  • Supported scenarios:
    • High-performance databases and in-memory databases
    • Data analytics, data mining, and distributed memory caching
    • Enterprise-level memory-intensive applications such as Hadoop clusters and Spark clusters
Instance types
Instance typevCPUsMemory (GiB)Network bandwidth (Gbit/s)Packet forwarding rate (pps)NIC queuesENIsPrivate IP addresses per ENI
ecs.se1.large2160.5100,000126
ecs.se1.xlarge4320.8200,0001310
ecs.se1.2xlarge8641.5400,0001410
ecs.se1.4xlarge161283500,0002820
ecs.se1.8xlarge322566800,0003820
ecs.se1.14xlarge56480101,200,0004820
Note

References