Help Center/ Distributed Cache Service/ Service Overview/ Comparing Versions and Specifications/ Comparing Redis Instance Types
Updated on 2025-07-25 GMT+08:00
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Comparing Redis Instance Types

When creating a DCS Redis instance, you can select the cache engine version and the instance type.

  • DCS for Redis 3.0 is no longer provided. You can use DCS for Redis 5.0 or later.
  • The underlying architectures vary by Redis version. Once a Redis version is chosen, it cannot be changed. For example, you cannot upgrade a DCS Redis 4.0 instance to Redis 5.0 or 6.0. If you require a higher Redis version, create a new instance that meets your requirements and then migrate data from the old instance to the new one.
  • Version

    DCS supports Redis 3.0/4.0/5.0/6.0/7.0. Table 1 describes the differences between these versions. For more information, see Open Source Redis Versions.

    Table 1 Differences between Redis versions

    Feature

    Redis 4.0/5.0/6.0/7.0 Basic Edition

    Redis 6.0 Enterprise Edition

    Open-source compatibility

    4.x, 5.x, 6.x, and 7.x. For more information, see How Do I View the Version of a DCS Redis Instance?.

    6.x. For more information, see How Do I View the Version of a DCS Redis Instance?.

    Time required for creating an instance

    8 seconds

    5 to 15 minutes

    QPS

    100,000 QPS per shard

    Enterprise (performance): 400,000 QPS per shard

    Enterprise (storage): 70,000 QPS per shard

    Public network access

    Public access can be enabled using ELB. For more information, see Enabling Public Access to Redis and Obtaining the Access Addresses.

    Public access can be enabled using ELB. For more information, see Enabling Public Access to Redis and Obtaining the Access Addresses.

    Domain name connection

    Supported in VPC

    Supported in VPC

    Visualized data management

    Provides Web CLI for Redis access and data management.

    Provides Web CLI for Redis access and data management.

    Instance type

    Redis 4.0/5.0/6.0: single-node, master/standby, read/write splitting, Proxy Cluster, and Redis Cluster

    Redis 7.0: single-node, master/standby, and Redis Cluster

    Master/Standby

    Capacity expansion/reduction

    Online capacity expansion and reduction

    Online capacity expansion and reduction

    Backup and restoration

    Supported for master/standby, Proxy Cluster, Redis Cluster, and read/write splitting instances

    Available for master/standby instances.
  • Instance type

    DCS provides single-node, master/standby, Proxy Cluster, Redis Cluster, and read/write splitting instance types. For details about their architectures and application scenarios, see DCS Instance Types.