ApsaraDB for Redis provides multiple editions, series types, and architectures.

The specifications of ApsaraDB for Redis instances are classified by edition, series type, and architecture. The following table helps you navigate to the details of required instance specifications.

Edition Series Type Architecture Type Introduction
ApsaraDB for Redis Community Edition None Standard master-replica instances A master-replica instance of ApsaraDB for Redis. The maximum memory capacity is 64 GB and the suggested query rate is approximately 80,000 queries per second (QPS).
Master-replica cluster instances A cluster instance of ApsaraDB for Redis. Each data shard is deployed in a master-replica architecture. The instance with the highest capacity and performance contains 32 data shards and supports a memory capacity of 512 GB. The suggested query rate is approximately 2,560,000 QPS.
Read/write splitting instances An ApsaraDB for Redis instance that contains a master-replica architecture and one or more read replicas. The instance with the highest capacity and performance contains five read replicas and supports a memory capacity of 64 GB.
Read/write splitting cluster instances A read/write splitting instance of ApsaraDB for Redis that contains a cluster instance and one or more read replicas. Each shard in the cluster is attached with one read replica. The instance with the highest capacity and performance contains 32 shards and 32 read replicas, and supports a memory capacity of 512 GB.
ApsaraDB for Redis Enterprise Edition (Tair) Performance enhanced Standard master-replica instances A performance-enhanced instance of ApsaraDB for Redis that uses multi-thread model and supports several types of new data structures. The performance-enhanced instance provides the performance approximately three times that of a standard master-replica instance. The instance with the highest capacity and performance supports a memory capacity of 64 GB. The suggested query rate is approximately 240,000 QPS.
Note For more information, see Enhanced multi-threading performance.
Master-replica cluster instances A cluster instance of ApsaraDB for Redis that uses multi-thread model and supports several types of new data structures. Each data Shard uses a master-replica architecture, and the performance is about three times that of a community instance with the same specification. The instance with the highest capacity and performance supports a memory capacity of 4096 GB, and approximately 61440000 QPS (reference value).
Read/Write Splitting An Apsaradb for Redis instance that consists of one or more read-only replicas and a primary data node with a master-replica architecture. It uses multi-thread model and supports several types of new data structures. The highest specification supports 64 GB of memory and 5 read replicas.
Hybrid storage Standard master-replica instances A hybrid-storage instance of ApsaraDB for Redis developed based on standard master-replica instances. The hybrid-storage instance supports storage in memory and disks. The instance with the highest capacity and performance supports a memory capacity of 64 GB and disk storage of up to 512 GB.
Cluster Instances A cluster instance of ApsaraDB for Redis that supports storage in memory and disks. The instance with the highest capacity and performance supports a memory capacity of 1,024 GB and disk storage of up to 8,192 GB, and contains 16 shards.
Deprecated instance types N/A N/A Some ApsaraDB for Redis instances are no longer available for purchase. If you have already purchased one or more of them, you can still continue using them. You can view the connection limit, bandwidth, and QPS reference value of these specifications in Deprecated instance types.

FAQ

  • Q: Why are some instance types not available?

    A: These instances may have been deprecated and no longer available for purchase. For more information, see Deprecated instance types.

  • Q: How can I check the specifications of an ApsaraDB for Redis instance by using InstanceClass?
    A: You can enter the value of InstanceClass in the search bar at the top of an Alibaba Cloud document.
  • Q: How do I test the performance of ApsaraDB for Redis instances?

    A: You can test the performance of ApsaraDB for Redis instances by using the methods described in Performance White Paper.