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    Elastic Compute Service:Compute-optimized instance families (c series)

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    Elastic Compute Service:Compute-optimized instance families (c series)

    Last Updated:Nov 15, 2024

    Most compute-optimized instance families (c series) provide a CPU-to-memory ratio of 1:2. Compute-optimized instance families are suitable for various scenarios such as databases, web servers, high-performance scientific and engineering applications, game servers, data analytics, batch computing, video encoding, and machine learning.

    Background information

    Before you read further in this topic, you must be familiar with the following information:

    • Classification and naming of instance types. Familiarize yourself with the instance family categories, naming conventions of instance types, and differences between instance families. For more information, see Classification and naming of instance types.

    • Instance type metrics. For information about the metrics of instance types, see Instance type metrics.

    • Instructions for selecting instance types based on your business scenarios. For more information, see Instance type selection.

    After you determine an instance type for your use case, you may need to learn about the following information:

    • Regions in which the instance type is available for purchase. Instance types that are available for purchase vary based on the region. You can go to the Instance Types Available for Each Region page to view the instance types available for purchase in each region.

    • Estimated instance costs. You can calculate the price of instances that uses different billing methods in the Price Calculator.

    • Instructions for purchasing an instance. You can go to the ECS instance buy page to place a purchase order for instances.

    You may be concerned about the following information:

    • Retired instance families. If you cannot find an instance type in this topic, the instance type may be in a retired instance family. For information about retired instance families, see Retired instance families.

    • Supported instance type changes. Before you change the instance type of an instance, check whether the instance type can be changed and identify compatible instance types. For more information, see Instance types and families that support instance type changes.

    x86-based instance families

    Arm-based instance families

    Not recommended instance families (If the following instance families are sold out, we recommend that you use the instance families in the preceding columns.)

    Intel processor-powered instance families

    AMD processor-powered instance families

    YiTian or other processor-powered instance families

    YiTian 710 processor-powered instance families:

    Ampere® Altra® processor-powered instance families:

    c8a, compute-optimized instance family

    • Introduction: This instance family uses the innovative Cloud Infrastructure Processing Unit (CIPU) architecture developed by Alibaba Cloud to provide consistent computing power, a more robust I/O engine, and chip-level security hardening.

    • Supported scenarios: big data applications, web applications, AI training and inference, and audio and video transcoding applications.

    • Compute:

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports the Non-Volatile Memory Express (NVMe) protocol. For more information, see NVMe protocol.

      • Supports Enterprise SSDs (ESSDs) and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Offers burstable disk IOPS and burstable disk bandwidth for low-specification instances and provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Supports elastic RDMA interfaces (ERIs). For information about how to use ERIs, see Configure eRDMA on an enterprise-level instance.

      • Supports the Jumbo Frames feature. For more information, see Jumbo frames.

      • Provides ultra-high packet forwarding rates.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    • Security: Supports the virtual Trusted Platform Module (vTPM) feature. For more information, see Overview.

    The c8a instance family includes the following instance types: ecs.c8a.large, ecs.c8a.xlarge, ecs.c8a.2xlarge, ecs.c8a.4xlarge, ecs.c8a.8xlarge, ecs.c8a.12xlarge, ecs.c8a.16xlarge, ecs.c8a.24xlarge, ecs.c8a.32xlarge, and ecs.c8a.48xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline/burst IOPS

    Disk baseline/burst bandwidth (Gbit/s)

    ecs.c8a.large

    2

    4

    1.5/burstable up to 12.5

    900,000

    Up to 250,000

    2

    3

    6

    6

    20,000/burstable up to 110,000

    1.5/burstable up to 10

    ecs.c8a.xlarge

    4

    8

    2.5/burstable up to 12.5

    1,000,000

    Up to 250,000

    4

    4

    6

    6

    30,000/burstable up to 110,000

    2/burstable up to 10

    ecs.c8a.2xlarge

    8

    16

    4/burstable up to 12.5

    1,600,000

    Up to 250,000

    8

    4

    15

    15

    45,000/burstable up to 110,000

    2.5/burstable up to 10

    ecs.c8a.4xlarge

    16

    32

    7/burstable up to 12.5

    2,000,000

    300,000

    16

    8

    30

    30

    60,000/burstable up to 110,000

    3.5/burstable up to 10

    ecs.c8a.8xlarge

    32

    64

    10/burstable up to 25

    3,000,000

    600,000

    32

    8

    30

    30

    80,000/burstable up to 110,000

    5/burstable up to 10

    ecs.c8a.12xlarge

    48

    96

    16/25

    4,500,000

    750,000

    48

    8

    30

    30

    120,000/none

    8/burstable up to 10

    ecs.c8a.16xlarge

    64

    128

    20/25

    6,000,000

    1,000,000

    64

    8

    30

    30

    160,000/none

    10/none

    ecs.c8a.24xlarge

    96

    192

    32/none

    9,000,000

    1,500,000

    64

    15

    30

    30

    240,000/none

    16/none

    ecs.c8a.32xlarge

    128

    256

    40/none

    12,000,000

    2,000,000

    64

    15

    30

    30

    320,000/none

    20/none

    ecs.c8a.48xlarge

    192

    384

    64/none

    18,000,000

    3,000,000

    64

    15

    30

    30

    500,000/none

    32/none

    Note

    For ecs.c8a.large and ecs.c8a.xlarge instances, you must enable the Jumbo Frames feature before the instances can burst their network bandwidths to 12.5 Gbit/s. For more information, see Jumbo frames.

    c8ae, performance-enhanced compute-optimized instance family

    • Introduction: This instance family uses the innovative CIPU architecture developed by Alibaba Cloud to provide consistent computing power, a more robust I/O engine, and chip-level security hardening.

    • Supported scenarios:

      • AI scenarios, such as deep learning and training, and AI inference

      • High-performance scientific computing scenarios, such as high-performance computing (HPC)

      • Large and medium-sized database systems, caches, and search clusters

      • Servers for massively multiplayer online (MMO) games

      • Other general-purpose enterprise-level applications that have high performance requirements

    • Compute:

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports the NVMe protocol. For more information, see NVMe protocol.

      • Supports ESSDs and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Offers burstable disk IOPS and burstable disk bandwidth for low-specification instances and provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Supports elastic RDMA interfaces (ERIs). For information about how to use ERIs, see Configure eRDMA on an enterprise-level instance.

      • Supports the Jumbo Frames feature. For more information, see Jumbo frames.

      • Provides ultra-high packet forwarding rates.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    • Security: Supports the virtual Trusted Platform Module (vTPM) feature. For more information, see Overview.

    The c8ae instance family includes the following instance types: ecs.c8ae.large, ecs.c8ae.xlarge, ecs.c8ae.2xlarge, ecs.c8ae.4xlarge, ecs.c8ae.8xlarge, ecs.c8ae.16xlarge, and ecs.c8ae.32xlarge. Click the following panel to see a table describing the metrics of instance types. For more information, see Metrics of instance types.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Support for vTPM

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline/burst IOPS

    Disk baseline/burst bandwidth (Gbit/s)

    ecs.c8ae.large

    2

    4

    3/burstable up to 15

    1,000,000

    Yes

    Up to 300,000

    2

    3

    6

    6

    30,000/burstable up to 200,000

    2/burstable up to 10

    ecs.c8ae.xlarge

    4

    8

    4/burstable up to 15

    1,200,000

    Yes

    Up to 300,000

    4

    4

    15

    15

    50,000/burstable up to 200,000

    2.5/burstable up to 10

    ecs.c8ae.2xlarge

    8

    16

    6/burstable up to 15

    1,600,000

    Yes

    Up to 300,000

    8

    4

    15

    15

    60,000/burstable up to 200,000

    3/burstable up to 10

    ecs.c8ae.4xlarge

    16

    32

    12/burstable up to 25

    3,000,000

    Yes

    500,000

    16

    8

    30

    30

    100,000/burstable up to 200,000

    6/burstable up to 10

    ecs.c8ae.8xlarge

    32

    64

    20/burstable up to 25

    6,000,000

    Yes

    1,000,000

    32

    8

    30

    30

    200,000/none

    10/none

    ecs.c8ae.16xlarge

    64

    128

    32/none

    9,000,000

    Yes

    1,500,000

    64

    8

    30

    30

    250,000/none

    16/none

    ecs.c8ae.32xlarge

    128

    256

    64/none

    18,000,000

    Yes

    3,000,000

    64

    15

    30

    30

    500,000/none

    32/none

    Note

    For ecs.c8ae.large and ecs.c8ae.xlarge instances, you must enable the Jumbo Frames feature before the instances can burst their network bandwidths to 15 Gbit/s. For more information, see Jumbo frames.

    c8i, compute-optimized instance family

    • Introduction: This instance family uses the innovative CIPU architecture developed by Alibaba Cloud to provide consistent computing power, a more robust I/O engine, and chip-level security hardening.

    • Supported scenarios: machine learning inference applications, data analytics, batch computing, video encoding, frontend servers for games, high-performance scientific and engineering applications, and web frontend servers.

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • Uses Intel® Xeon® Emerald Rapids or Intel® Xeon® Sapphire Rapids processors that deliver a clock speed of at least 2.7 GHz and an all-core turbo frequency of 3.2 GHz to provide consistent computing performance.

        Note

        When you purchase an instance of this instance family, the system randomly allocates one type of the preceding processors to the instance. You cannot select a processor type for the instance.

      • Supports Hyper-Threading. By default, Hyper-Threading is enabled. For more information, see Specify and view CPU options.

      • Is compatible with specific operating systems. For more information, see Operating system versions that support AMD Genoa processors used by eighth-generation AMD instance types.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports the NVMe protocol. For more information, see NVMe protocol.

      • Supports ESSDs and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Offers burstable disk IOPS and burstable disk bandwidth for low-specification instances and provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Supports elastic RDMA interfaces (ERIs). For information about how to use ERIs, see Configure eRDMA on an enterprise-level instance.

      • Supports the Jumbo Frames feature. For more information, see Jumbo frames.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    • Security:

      • Supports the virtual Trusted Platform Module (vTPM) feature. For more information, see Overview.

      • Implements trusted boot based on Trusted Cryptography Module (TCM) or 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.

      • Supports Intel Total Memory Encryption (TME) to encrypt memory.

    The c8i instance family includes the following instance types: ecs.c8i.large, ecs.c8i.xlarge, ecs.c8i.2xlarge, ecs.c8i.3xlarge, ecs.c8i.4xlarge, ecs.c8i.6xlarge, ecs.c8i.8xlarge, ecs.c8i.12xlarge, ecs.c8i.16xlarge, ecs.c8i.24xlarge, ecs.c8i.48xlarge, and ecs.ebmc8i.48xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline/burst IOPS

    Disk baseline/burst bandwidth (Gbit/s)

    ecs.c8i.large

    2

    4

    2.5/burstable up to 15

    1,000,000

    Up to 300,000

    2

    3

    6

    6

    25,000/burstable up to 200,000

    2/burstable up to 10

    ecs.c8i.xlarge

    4

    8

    4/burstable up to 15

    1,200,000

    Up to 300,000

    4

    4

    15

    15

    50,000/burstable up to 200,000

    2.5/burstable up to 10

    ecs.c8i.2xlarge

    8

    16

    6/burstable up to 15

    1,600,000

    Up to 300,000

    8

    4

    15

    15

    60,000/burstable up to 200,000

    4/burstable up to 10

    ecs.c8i.3xlarge

    12

    24

    10/burstable up to 15

    2,400,000

    Up to 300,000

    12

    8

    15

    15

    80,000/burstable up to 200,000

    5/burstable up to 10

    ecs.c8i.4xlarge

    16

    32

    12/burstable up to 25

    3,000,000

    350,000

    16

    8

    30

    30

    100,000/burstable up to 200,000

    6/burstable up to 10

    ecs.c8i.6xlarge

    24

    48

    15/burstable up to 25

    4,500,000

    500,000

    24

    8

    30

    30

    120,000/burstable up to 200,000

    7.5/burstable up to 10

    ecs.c8i.8xlarge

    32

    64

    20/burstable up to 25

    6,000,000

    800,000

    32

    8

    30

    30

    200,000/none

    10/none

    ecs.c8i.12xlarge

    48

    96

    25/none

    9,000,000

    1,000,000

    48

    8

    30

    30

    300,000/none

    12/none

    ecs.c8i.16xlarge

    64

    128

    32/none

    12,000,000

    1,600,000

    64

    8

    30

    30

    360,000/none

    20/none

    ecs.c8i.24xlarge

    96

    192

    50/none

    18,000,000

    2,000,000

    64

    15

    30

    30

    500,000/none

    24/none

    ecs.c8i.48xlarge

    192

    512

    100/none

    30,000,000

    4,000,000

    64

    15

    50

    50

    1,000,000/none

    48/none

    ecs.ebmc8i.48xlarge

    192

    512

    100/none

    30,000,000

    4,000,000

    64 (primary ENI)/16 (secondary ENI)

    72

    30

    30

    1,000,000/none

    48/none

    Note

    If you want to use the ecs.c8i.48xlarge instance type, submit a ticket.

    c8y, compute-optimized instance family

    • Introduction: 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.

    • Supported scenarios: containers, microservices, websites, application servers, video encoding and decoding, HPC, and CPU-based machine learning.

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • 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 the NVMe protocol. For more information, see NVMe protocol.

      • Supports ESSDs and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Offers burstable disk IOPS and burstable disk bandwidth for low-specification instances and provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Supports elastic RDMA interfaces (ERIs). For information about how to use ERIs, see Configure eRDMA on an enterprise-level instance.

      • Supports the Jumbo Frames feature. For more information, see Jumbo frames.

      • Provides ultra-high packet forwarding rates.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    The c8y instance family includes the following instance types: ecs.c8y.small, ecs.c8y.large, ecs.c8y.xlarge, ecs.c8y.2xlarge, ecs.c8y.4xlarge, ecs.c8y.8xlarge, ecs.c8y.16xlarge, and ecs.c8y.32xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    ERIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Maximum attached data disks

    Disk baseline/burst IOPS

    Disk baseline/burst bandwidth (Gbit/s)

    ecs.c8y.small

    1

    2

    1/10

    500,000

    Up to 250,000

    1

    2

    0

    3

    3

    5

    10,000/burstable up to 110,000

    1/burstable up to 6

    ecs.c8y.large

    2

    4

    2/10

    900,000

    Up to 250,000

    2

    3

    1

    6

    6

    8

    20,000/burstable up to 110,000

    1.5/burstable up to 6

    ecs.c8y.xlarge

    4

    8

    3/10

    1,000,000

    Up to 250,000

    4

    4

    1

    15

    15

    8

    40,000/burstable up to 110,000

    2/burstable up to 6

    ecs.c8y.2xlarge

    8

    16

    5/10

    1,600,000

    Up to 250,000

    8

    4

    1

    15

    15

    16

    50,000/burstable up to 110,000

    3/burstable up to 6

    ecs.c8y.4xlarge

    16

    32

    10/16

    3,000,000

    400,000

    25

    8

    1

    30

    30

    16

    80,000/burstable up to 110,000

    5/burstable up to 6

    ecs.c8y.8xlarge

    32

    64

    16/none

    5,000,000

    750,000

    32

    8

    1

    30

    30

    16

    125,000

    8

    ecs.c8y.16xlarge

    64

    128

    32/none

    10,000,000

    1,500,000

    32

    8

    1

    30

    30

    32

    250,000

    16

    ecs.c8y.32xlarge

    128

    256

    64/none

    20,000,000

    3,000,000

    32

    15

    1

    30

    30

    32

    500,000

    32

    Note

    If you want to use the ecs.c8y.32xlarge instance type, submit a ticket.

    c7a, compute-optimized instance family

    • Introduction: 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.

    • Supported scenarios:

      • Video encoding and decoding

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Web frontend servers

      • Frontend servers for MMO games

      • Scenarios where applications such as DevOps applications are developed and tested

      • Data analytics and batch computing

      • High-performance scientific and engineering applications

      • Enterprise-level applications of various types and sizes

    • Compute:

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Offers burstable disk IOPS and burstable disk bandwidth for low-specification instances and provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    The c7a instance family includes the following instance types: ecs.c7a.large, ecs.c7a.xlarge, ecs.c7a.2xlarge, ecs.c7a.4xlarge, ecs.c7a.8xlarge, ecs.c7a-nps1.8xlarge, ecs.c7a.16xlarge, ecs.c7a-nps1.16xlarge, and ecs.c7a.32xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline/burst IOPS

    Disk baseline/burst bandwidth (Gbit/s)

    ecs.c7a.large

    2

    4

    1/burstable up to 10

    900,000

    Up to 250,000

    2

    3

    6

    6

    12,500/burstable up to 110,000

    1/burstable up to 6

    ecs.c7a.xlarge

    4

    8

    1.5/burstable up to 10

    1,000,000

    Up to 250,000

    4

    4

    15

    15

    20,000/burstable up to 110,000

    1.5/burstable up to 6

    ecs.c7a.2xlarge

    8

    16

    2.5/burstable up to 10

    1,600,000

    Up to 250,000

    8

    4

    15

    15

    30,000/burstable up to 110,000

    2/burstable up to 6

    ecs.c7a.4xlarge

    16

    32

    5/burstable up to 10

    2,000,000

    300,000

    8

    8

    30

    30

    60,000/burstable up to 110,000

    3/burstable up to 6

    ecs.c7a.8xlarge

    32

    64

    8/burstable up to 10

    3,000,000

    600,000

    16

    7

    30

    30

    75,000/burstable up to 110,000

    4/burstable up to 6

    ecs.c7a-nps1.8xlarge

    32

    64

    8/burstable up to 10

    3,000,000

    600,000

    16

    7

    30

    30

    75,000/burstable up to 110,000

    4/burstable up to 6

    ecs.c7a.16xlarge

    64

    128

    16/none

    6,000,000

    1,000,000

    32

    7

    30

    30

    150,000/none

    8/none

    ecs.c7a-nps1.16xlarge

    64

    128

    16/none

    6,000,000

    1,000,000

    32

    7

    30

    30

    150,000/none

    8/none

    ecs.c7a.32xlarge

    128

    256

    32/none

    12,000,000

    2,000,000

    32

    15

    30

    30

    300,000/none

    16/none

    Note

    Ubuntu 16 and Debian 9 operating system kernels do not support AMD EPYC™ 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 be started.

    c7, compute-optimized instance family

    • Introduction: 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.

    • Supported scenarios:

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Frontend servers for MMO games

      • Web frontend servers

      • Data analytics, batch computing, and video encoding

      • High-performance scientific and engineering applications

      • Scenarios that require secure and trusted computing

      • Enterprise-level applications of various types and sizes

      • Blockchain scenarios

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • Uses the 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.

      • Supports Hyper-Threading. By default, Hyper-Threading is enabled. For more information, see Specify and view CPU options.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Offers burstable disk IOPS and burstable disk bandwidth for low-specification instances and provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    • Security:

    The c7 instance family includes the following instance types: ecs.c7.large, ecs.c7.xlarge, ecs.c7.2xlarge, ecs.c7.3xlarge, ecs.c7.4xlarge, ecs.c7.6xlarge, ecs.c7.8xlarge, ecs.c7.16xlarge, and ecs.c7.32xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Support for vTPM

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Maximum attached data disks

    Disk baseline/burst IOPS

    Disk baseline/burst bandwidth (Gbit/s)

    ecs.c7.large

    2

    4

    2/burstable up to 12.5

    1,100,000

    Yes

    Up to 500,000

    2

    3

    6

    6

    8

    20,000/burstable up to 160,000

    1.5/burstable up to 10

    ecs.c7.xlarge

    4

    8

    3/burstable up to 12.5

    1,100,000

    Yes

    Up to 500,000

    4

    4

    15

    15

    8

    40,000/burstable up to 160,000

    2/burstable up to 10

    ecs.c7.2xlarge

    8

    16

    5/burstable up to 15

    1,600,000

    Yes

    Up to 500,000

    8

    4

    15

    15

    16

    50,000/burstable up to 160,000

    3/burstable up to 10

    ecs.c7.3xlarge

    12

    24

    8/burstable up to 15

    2,400,000

    Yes

    Up to 500,000

    8

    8

    15

    15

    16

    70,000/burstable up to 160,000

    4/burstable up to 10

    ecs.c7.4xlarge

    16

    32

    10/burstable up to 25

    3,000,000

    Yes

    500,000

    8

    8

    30

    30

    16

    80,000/burstable up to 160,000

    5/burstable up to 10

    ecs.c7.6xlarge

    24

    48

    12/burstable up to 25

    4,500,000

    Yes

    550,000

    12

    8

    30

    30

    16

    110,000/burstable up to 160,000

    6/10

    ecs.c7.8xlarge

    32

    64

    16/burstable up to 32

    6,000,000

    Yes

    600,000

    16

    8

    30

    30

    24

    160,000/none

    10/none

    ecs.c7.16xlarge

    64

    128

    32/none

    12,000,000

    Yes

    1,200,000

    32

    8

    30

    30

    32

    360,000/none

    16/none

    ecs.c7.32xlarge

    128

    256

    64/none

    24,000,000

    Yes

    2,400,000

    32

    15

    30

    30

    32

    600,000/none

    32/none

    c6r, compute-optimized instance family

    • Introduction: 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.

    • Supported scenarios:

      • Containers and microservices

      • Scenarios where applications such as DevOps applications are developed and tested

      • Websites and application servers

      • CPU-based machine learning and inference

      • High-performance nce and engineering applications

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • Uses 2.8 GHz Ampere® Altra® processors to provide consistent computing performance.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks. For information about disks, see Overview of Block Storage.

      • Provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides burstable network bandwidth for low-specification instances.

      • Provides high network performance based on large computing capacity.

    The c6r instance family includes the following instance types: ecs.c6r.large, ecs.c6r.xlarge, ecs.c6r.2xlarge, ecs.c6r.4xlarge, ecs.c6r.8xlarge, and ecs.c6r.16xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline IOPS

    Disk baseline bandwidth (Gbit/s)

    ecs.c6r.large

    2

    4

    1/10

    900,000

    Up to 250,000

    2

    3

    6

    1

    12,500

    1

    ecs.c6r.xlarge

    4

    8

    1.5/10

    1,000,000

    Up to 250,000

    4

    4

    15

    1

    20,000

    1.5

    ecs.c6r.2xlarge

    8

    16

    2.5/10

    1,600,000

    Up to 250,000

    8

    4

    15

    1

    30,000

    2

    ecs.c6r.4xlarge

    16

    32

    5/10

    2,000,000

    300,000

    8

    8

    30

    1

    60,000

    3

    ecs.c6r.8xlarge

    32

    64

    8/10

    3,000,000

    600,000

    16

    7

    30

    1

    75,000

    4

    ecs.c6r.16xlarge

    64

    128

    16/none

    6,000,000

    900,000

    32

    7

    30

    1

    150,000

    8

    c6a, compute-optimized instance family

    • Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.

    • Supported scenarios: video encoding and decoding, scenarios in which large volumes of packets are received and transmitted, web frontend servers, frontend servers for MMO games, and scenarios where applications such as DevOps applications are developed and tested.

    • Compute:

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks. For information about disks, see Overview of Block Storage.

      • Provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides high network performance based on large computing capacity.

    The c6a instance family includes the following instance types: ecs.c6a.large, ecs.c6a.xlarge, ecs.c6a.2xlarge, ecs.c6a.4xlarge, ecs.c6a.8xlarge, ecs.c6a.16xlarge, and ecs.c6a.32xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline IOPS

    Disk baseline bandwidth (Gbit/s)

    ecs.c6a.large

    2

    4

    1/10

    900,000

    Up to 250,000

    2

    2

    6

    1

    12,500

    1

    ecs.c6a.xlarge

    4

    8

    1.5/10

    1,000,000

    Up to 250,000

    4

    3

    15

    1

    20,000

    1.5

    ecs.c6a.2xlarge

    8

    16

    2.5/10

    1,600,000

    Up to 250,000

    8

    4

    15

    1

    30,000

    2

    ecs.c6a.4xlarge

    16

    32

    5/10

    2,000,000

    300,000

    8

    8

    30

    1

    60,000

    3.1

    ecs.c6a.8xlarge

    32

    64

    8/10

    3,000,000

    600,000

    16

    7

    30

    1

    75,000

    4.1

    ecs.c6a.16xlarge

    64

    128

    16/none

    6,000,000

    1,000,000

    32

    8

    30

    1

    150,000

    8.2

    ecs.c6a.32xlarge

    128

    256

    32/none

    12,000,000

    2,000,000

    32

    15

    30

    1

    300,000

    16.4

    c6e, performance-enhanced compute-optimized instance family

    • Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using 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.

    • Supported scenarios:

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Web frontend servers

      • Frontend servers for MMO games

      • Data analytics, batch computing, and video encoding

      • High-performance scientific and engineering applications

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • 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.

      • Supports Hyper-Threading. By default, Hyper-Threading is enabled. For more information, see Specify and view CPU options.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs and ESSD AutoPL disks. For information about disks, see Overview of Block Storage.

      • Provides high storage I/O performance based on large computing capacity. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

        Note

        Network performance varies based on the instance families. For higher concurrent connection and network packet forwarding capabilities, we recommend that you use the g7ne instance family.

      • Provides high network performance based on large computing capacity.

    The c6e instance family includes the following instance types: ecs.c6e.large, ecs.c6e.xlarge, ecs.c6e.2xlarge, ecs.c6e.4xlarge, ecs.c6e.8xlarge, ecs.c6e.13xlarge, and ecs.c6e.26xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline IOPS

    Disk baseline bandwidth (Gbit/s)

    ecs.c6e.large

    2

    4

    1.2/burstable up to 10

    900,000

    Up to 250,000

    2

    3

    6

    1

    20,000

    1

    ecs.c6e.xlarge

    4

    8

    2/burstable up to 10

    1,000,000

    Up to 250,000

    4

    4

    15

    1

    40,000

    1.5

    ecs.c6e.2xlarge

    8

    16

    3/burstable up to 10

    1,600,000

    Up to 250,000

    8

    4

    15

    1

    50,000

    2

    ecs.c6e.4xlarge

    16

    32

    6/burstable up to 10

    3,000,000

    300,000

    8

    8

    30

    1

    80,000

    3

    ecs.c6e.8xlarge

    32

    64

    10/none

    6,000,000

    600,000

    16

    8

    30

    1

    150,000

    5

    ecs.c6e.13xlarge

    52

    96

    16/none

    9,000,000

    1,000,000

    32

    7

    30

    1

    240,000

    8

    ecs.c6e.26xlarge

    104

    192

    32/none

    24,000,000

    1,800,000

    32

    15

    30

    1

    480,000

    16

    c6, compute-optimized instance family

    • Introduction: This instance family offloads a large number of virtualization features to dedicated hardware by using the SHENLONG architecture to provide predictable and consistent ultra-high performance and reduce virtualization overheads.

    • Supported scenarios:

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Web frontend servers

      • Frontend servers for MMO games

      • Data analytics, batch computing, and video encoding

      • High-performance scientific and engineering applications

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • 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.

      • Supports Hyper-Threading. By default, Hyper-Threading is enabled. For more information, see Specify and view CPU options.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks. For information about disks, see Overview of Block Storage.

        Note

        The maximum performance of disks varies based on the 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. For more information, see Storage I/O performance.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides high network performance based on large computing capacity.

    • Supported instance type changes: Supports changes to g6 or r6 instance types.

    The c6 instance family includes the following instance types: ecs.c6.large, ecs.c6.xlarge, ecs.c6.2xlarge, ecs.c6.3xlarge, ecs.c6.4xlarge, ecs.c6.6xlarge, ecs.c6.8xlarge, ecs.c6.13xlarge, and ecs.c6.26xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline/burst bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    Connections

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    Disk baseline IOPS

    Disk baseline bandwidth (Gbit/s)

    ecs.c6.large

    2

    4

    1/burstable up to 3

    300,000

    Up to 250,000

    2

    2

    6

    1

    10,000

    1

    ecs.c6.xlarge

    4

    8

    1.5/burstable up to 5

    500,000

    Up to 250,000

    4

    3

    10

    1

    20,000

    1.5

    ecs.c6.2xlarge

    8

    16

    2.5/burstable up to 8

    800,000

    Up to 250,000

    8

    4

    10

    1

    25,000

    2

    ecs.c6.3xlarge

    12

    24

    4/burstable up to 10

    900,000

    Up to 250,000

    8

    6

    10

    10

    30,000

    2.5

    ecs.c6.4xlarge

    16

    32

    5/burstable up to 10

    1,000,000

    300,000

    8

    8

    20

    1

    40,000

    3

    ecs.c6.6xlarge

    24

    48

    7.5/burstable up to 10

    1,500,000

    450,000

    12

    8

    20

    1

    50,000

    4

    ecs.c6.8xlarge

    32

    64

    10/none

    2,000,000

    600,000

    16

    8

    20

    1

    60,000

    5

    ecs.c6.13xlarge

    52

    96

    12.5/none

    3,000,000

    900,000

    32

    7

    20

    1

    100,000

    8

    ecs.c6.26xlarge

    104

    192

    25/none

    6,000,000

    1,800,000

    32

    15

    20

    1

    200,000

    16

    c5, compute-optimized instance family

    • Supported scenarios:

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Web frontend servers

      • Frontend servers for MMO games

      • Data analytics, batch computing, and video encoding

      • High-performance scientific and engineering applications

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) or 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 c6, c6e, or c7 instance family.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks. For information about disks, see Overview of Block Storage.

        Note

        The maximum performance of disks varies based on the instance families. A single instance of this instance family can deliver up to 200,000 IOPS.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides high network performance based on large computing capacity.

    The c5 instance family includes the following instance types: ecs.c5.large, ecs.c5.xlarge, ecs.c5.2xlarge, ecs.c5.3xlarge, ecs.c5.4xlarge, ecs.c5.6xlarge, ecs.c5.8xlarge, and ecs.c5.16xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    ecs.c5.large

    2

    4

    1

    300,000

    2

    2

    6

    1

    ecs.c5.xlarge

    4

    8

    1.5

    500,000

    2

    3

    10

    1

    ecs.c5.2xlarge

    8

    16

    2.5

    800,000

    4

    4

    10

    1

    ecs.c5.3xlarge

    12

    24

    4

    900,000

    4

    6

    10

    1

    ecs.c5.4xlarge

    16

    32

    5

    1,000,000

    4

    8

    20

    1

    ecs.c5.6xlarge

    24

    48

    7.5

    1,500,000

    6

    8

    20

    1

    ecs.c5.8xlarge

    32

    64

    10

    2,000,000

    8

    8

    20

    1

    ecs.c5.16xlarge

    64

    128

    20

    4,000,000

    16

    8

    20

    1

    ic5, compute-intensive instance family

    • Supported scenarios:

      • Web frontend servers

      • Data analytics, batch computing, and video encoding

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Frontend servers for MMO games

    • Compute:

      • Offers a CPU-to-memory ratio of 1:1.

      • Uses 2.5 GHz Intel® Xeon® Platinum 8163 (Skylake) or 8269CY (Cascade Lake) processors that deliver an all-core turbo frequency of 2.7 GHz to provide consistent computing performance.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports ESSDs, ESSD AutoPL disks, standard SSDs, and ultra disks. For information about disks, see Overview of Block Storage.

    • Network:

      • Supports only IPv4.

      • Provides ultra-high packet forwarding rates.

      • Provides high network performance based on large computing capacity.

    The ic5 instance family includes the following instance types: ecs.ic5.large, ecs.ic5.xlarge, ecs.ic5.2xlarge, ecs.ic5.3xlarge, ecs.ic5.4xlarge, ecs.ic5.6xlarge, ecs.ic5.8xlarge, and ecs.ic5.16xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    ecs.ic5.large

    2

    2

    1

    300,000

    2

    2

    6

    ecs.ic5.xlarge

    4

    4

    1.5

    500,000

    2

    3

    10

    ecs.ic5.2xlarge

    8

    8

    2.5

    800,000

    2

    4

    10

    ecs.ic5.3xlarge

    12

    12

    4

    900,000

    4

    6

    10

    ecs.ic5.4xlarge

    16

    16

    5

    1,000,000

    4

    8

    20

    ecs.ic5.6xlarge

    24

    24

    8

    20

    ecs.ic5.8xlarge

    32

    32

    8

    20

    ecs.ic5.16xlarge

    64

    64

    8

    20

    sn1ne, network-enhanced compute-optimized instance family

    • Supported scenarios:

      • Scenarios where large volumes of packets are received and transmitted, such as live commenting on videos and telecom data forwarding

      • Web frontend servers

      • Frontend servers for MMO games

      • Data analytics, batch computing, and video encoding

      • High-performance scientific and engineering applications

    • Compute:

      • Offers a CPU-to-memory ratio of 1:2.

      • Uses 2.5 GHz Intel® Xeon® E5-2682 v4 (Broadwell), Platinum 8163 (Skylake), or 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 c6, c6e, or c7 instance family.

    • Storage:

      • Is an instance family in which all instances are I/O optimized.

      • Supports standard SSDs and ultra disks. For information about disks, see Overview of Block Storage.

    • Network:

      • Supports IPv4 and IPv6. For information about IPv6 communication, see IPv6 communication.

      • Provides ultra-high packet forwarding rates.

      • Provides high network performance based on large computing capacity.

    The sn1ne instance family includes the following instance types: ecs.sn1ne.large, ecs.sn1ne.xlarge, ecs.sn1ne.2xlarge, ecs.sn1ne.3xlarge, ecs.sn1ne.4xlarge, ecs.sn1ne.6xlarge, and ecs.sn1ne.8xlarge. Click the following panel to see a table describing the specifications of each instance type in this instance family. For information about the metrics of instance types, see Instance type metrics.

    Instance types

    Instance type

    vCPU

    Memory (GiB)

    Network baseline bandwidth (Gbit/s)

    Packet forwarding rate (pps)

    NIC queues

    ENIs

    Private IPv4 addresses per ENI

    IPv6 addresses per ENI

    ecs.sn1ne.large

    2

    4

    1

    300,000

    2

    2

    6

    1

    ecs.sn1ne.xlarge

    4

    8

    1.5

    500,000

    2

    3

    10

    1

    ecs.sn1ne.2xlarge

    8

    16

    2

    1,000,000

    4

    4

    10

    1

    ecs.sn1ne.3xlarge

    12

    24

    2.5

    1,300,000

    4

    6

    10

    1

    ecs.sn1ne.4xlarge

    16

    32

    3

    1,600,000

    4

    8

    20

    1

    ecs.sn1ne.6xlarge

    24

    48

    4.5

    2,000,000

    6

    8

    20

    1

    ecs.sn1ne.8xlarge

    32

    64

    6

    2,500,000

    8

    8

    20

    1

    References