Help Center/ Distributed Cache Service/ User Guide (Ankara Region)/ FAQs/ Instance Types/Versions/ Comparing Versions
Updated on 2024-11-26 GMT+08:00
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Comparing Versions

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

  • Version

    DCS supports Redis 3.0/4.0/5.0/6.0. Table 1 describes the differences between these versions. For more information about Redis features, see New Features of DCS for Redis 4.0, New Features of DCS for Redis 6.0, and New Features of DCS for Redis 5.0.

    Table 1 Differences between Redis versions

    Item

    Redis 3.0

    Redis 4.0 and Redis 5.0

    Redis 6.0

    Open-source compatibility

    Redis 3.0.7

    Redis 4.0.14

    The latest DCS for Redis 5.0 is compatible with Redis 5.0.14. For existing users, see How Do I View the Version of a DCS Redis Instance?.

    6.2.7

    Instance deployment mode

    Based on VMs

    Containerized based on physical servers

    Containerized based on physical servers

    CPU architecture

    x86 and Arm

    x86 and Arm

    x86

    Time required for creating an instance

    3–15 minutes, or 10–30 minutes for cluster instances.

    8 seconds

    8 seconds

    QPS

    50,000 QPS per node

    50,000 QPS per node

    150,000 QPS per node

    Domain name connection

    Supported within a VPC

    Supported within a VPC

    Supported within a VPC

    Visualized data management

    Not supported

    Web CLI for connecting to Redis and managing data

    Web CLI for connecting to Redis and managing data

    Instance types

    Single-node, master/standby, and Proxy Cluster

    Single-node, master/standby, Proxy Cluster, Redis Cluster

    Single-node, master/standby, Redis Cluster

    Instance total memory

    Ranges from 2 GB to 1024 GB.

    Regular specifications range from 2 GB to 1024 GB. Small specifications of 128 MB, 256 MB, 512 MB, and 1 GB are also available for single-node and master/standby instances.

    4 GB, 8 GB, 16 GB, 32 GB, and 64 GB (128 MB, 256 MB, 512 MB, and 1 GB are additionally supported for single-node and master/standby instances)

    Scale-up or scale-down

    Online scale-up and scale-down

    Online scale-up and scale-down

    Online scale-up and scale-down

    Backup and restoration

    Supported for master/standby and cluster instances

    Supported for master/standby and cluster instances

    Master/Standby, Redis Cluster

    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 3.0 instance to Redis 4.0 or 5.0. 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.

    DCS Redis 3.0 instances have been taken offline at new sites, but can still be used at existing sites. You are advised to use DCS Redis 4.0 and later instances.

  • Instance type

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

Parent topic: Instance Types/Versions