Getting to Know GeminiDB Redis API

This section describes GeminiDB Redis product and instance types, helping you quickly create and connect to a GeminiDB Redis instance.

**Table 1** Product types
Product Type	Scenario	Supported Instance Type
Standard	Stable and low-latency performance is provided, suitable for common scenarios such as advertising and recommendation, gaming, e-commerce, and Internet of Vehicles (IoV).	Proxy cluster Redis Cluster Primary/Standby
Capacity-oriented	Large-capacity key-value storage is provided, suitable for average performance requirements and expectations of low costs.	Proxy cluster
Performance-enhanced	Performance-enhanced instances provide high I/O performance and can handle up to millions of QPS per shard, with low latency. NOTE: Performance-enhanced instances are in OBT. To create them, choose Service Tickets > Create Service Ticket in the upper right corner of the console.	Proxy cluster

**Table 2** Instance types
Instance Type	Scenario
Proxy cluster	In a sharded cluster, a proxy cluster GeminiDB Redis instance is connected through proxies to a standalone Redis instance, Redis Sentinel, and Redis Cluster. The proxy cluster instance has strong horizontal scaling capabilities and can handle millions of QPS and dozens of terabytes of data.
Redis Cluster	With the native Redis Cluster architecture, a Redis Cluster GeminiDB Redis instance is directly connected to Redis Cluster. No proxy is required. Clients are directly connected to shards, so a single shard can handle more QPS with lower latency. Up to 128 nodes are supported.
Primary/Standby	A primary/standby instance is compatible with a standalone Redis node and Redis Sentinel. This instance type is used when hashtags are unavailable.

Connection Method

Data Admin Service (DAS) enables you to manage instances on a web-based console, simplifying database management and improving working efficiency. You can connect and manage instances through DAS. By default, you have the permission of remote login. DAS is secure and convenient for connecting to GeminiDB Redis instances. For more information, see Data Admin Service (DAS).

**Table 3** Connection on DAS
Method	Scenario	Remarks
Connecting to an instance on DAS	You can log in to an instance on the console without using an IP address.	Easy to use, secure, advanced, and intelligent By default, you have the permission of remote login. DAS is secure and convenient for connecting to DB instances.