When creating a DCS Redis instance, you can select the cache engine version and the instance type.
- Version
DCS supports Redis 3.0/4.0/5.0/6.0/7.0. The following table describes the differences between these versions.
Table 1 Differences between Redis versions Feature
Redis 3.0
Redis 4.0 and Redis 5.0
Redis 6.0/7.0
Open-source compatibility
Redis 3.0.7
Redis 4.0.14 and 5.0.14, respectively
Redis 6.2.7 and 7.2, respectively
Instance deployment mode
Based on VMs
Containerized based on physical servers
Containerized based on physical servers
Time required for creating an instance
3–15 minutes, or 10–30 minutes for cluster instances.
8 seconds
8 seconds
QPS
100,000 QPS per node
100,000 QPS per node
100,000 QPS per node
Public network access
Supported
Not supported
Not supported
Visualized data management
Not supported
Web CLI for connecting to Redis and managing data
Web CLI for connecting to Redis and managing data
Instance type
Single-node, master/standby, and Proxy Cluster
Single-node, master/standby, Proxy Cluster, read/write splitting, and Redis Cluster
Redis 6.0: Single-node, master/standby, Proxy Cluster, read/write splitting, and Redis Cluster
Redis 7.0: Single-node, master/standby, and Redis Cluster
Single-node, master/standby, and Redis Cluster
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, read/write splitting, and cluster instances
Supported for master/standby, read/write splitting, and cluster instances
NoteThe 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.
- Instance type
Select from single-node, master/standby, read/write splitting, and cluster types. For details about their architectures and application scenarios, see DCS Instance Types.