You can no longer purchase new instances of some Tair (Redis OSS-compatible) specifications. You can continue to use your existing instances. This topic describes the connection limits, bandwidth, and queries per second (QPS) reference values for these retired specifications.
Standard Edition for zone-disaster recovery
Specification | InstanceClass (for API calls) | Maximum connections | Bandwidth (MB/s) | QPS reference |
1 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb1g.1db.0rodb.4proxy.default | 10000 | 10 | 80000 |
2 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb2g.1db.0rodb.4proxy.default | 10000 | 16 | 80000 |
4 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb4g.1db.0rodb.4proxy.default | 10000 | 24 | 80000 |
8 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb8g.1db.0rodb.4proxy.default | 10000 | 24 | 80000 |
16 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb16g.1db.0rodb.4proxy.default | 10000 | 32 | 80000 |
32 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb32g.1db.0rodb.4proxy.default | 10000 | 32 | 80000 |
64 GB zone-disaster recovery instance | redis.logic.sharding.drredissdb64g.1db.0rodb.4proxy.default | 10000 | 48 | 80000 |
Cluster Edition (dual-replica)
Specification | InstanceClass (for API calls) | Shards | Maximum connections | Bandwidth (MB/s) | QPS reference |
1 GB cluster instance (2 shards) | redis.logic.sharding.512m.2db.0rodb.4proxy.default | 2 | 20000 | 48 | 200000 |
1 GB cluster instance (4 shards) | redis.logic.sharding.256m.4db.0rodb.4proxy.default | 4 | 40000 | 96 | 400000 |
2 GB cluster instance (4 shards) | redis.logic.sharding.512m.4db.0rodb.4proxy.default | 4 | 40000 | 96 | 400000 |
2 GB cluster instance (8 shards) | redis.logic.sharding.256m.8db.0rodb.8proxy.default | 8 | 80000 | 192 | 800000 |
4 GB cluster instance (8 shards) | redis.logic.sharding.512m.8db.0rodb.8proxy.default | 8 | 80000 | 192 | 800000 |
4 GB cluster instance (16 shards) | redis.logic.sharding.256m.16db.0rodb.16proxy.default | 16 | 160000 | 384 | 1600000 |
8 GB cluster instance (16 shards) | redis.logic.sharding.512m.16db.0rodb.16proxy.default | 16 | 160000 | 384 | 1600000 |
8 GB cluster instance (32 shards) | redis.logic.sharding.256m.32db.0rodb.32proxy.default | 32 | 320000 | 768 | 3200000 |
16 GB cluster instance (32 shards) | redis.logic.sharding.512m.32db.0rodb.32proxy.default | 32 | 320000 | 768 | 3200000 |
16 GB cluster instance | redis.sharding.small.default | 8 | 80000 | 768 | 640000 |
32 GB cluster instance | redis.sharding.mid.default | 8 | 80000 | 768 | 640000 |
64 GB cluster instance | redis.sharding.large.default | 8 | 80000 | 768 | 640000 |
128 GB cluster instance | redis.sharding.2xlarge.default | 16 | 160000 | 1536 | 1280000 |
256 GB cluster instance | redis.sharding.4xlarge.default | 16 | 160000 | 1536 | 1280000 |
512 GB cluster instance | redis.sharding.8xlarge.default | 32 | 320000 | 2048 | 2560000 |
Cluster Edition for zone-disaster recovery
Specification | InstanceClass (for API calls) | Shards | Maximum connections | Bandwidth (MB/s) | QPS reference |
16 GB cluster instance for zone-disaster recovery | redis.logic.sharding.drredismdb16g.8db.0rodb.8proxy.default | 8 | 80000 | 768 | 640000 |
32 GB cluster instance for zone-disaster recovery | redis.logic.sharding.drredismdb32g.8db.0rodb.8proxy.default | 8 | 80000 | 768 | 640000 |
64 GB cluster instance for zone-disaster recovery | redis.logic.sharding.drredismdb64g.8db.0rodb.8proxy.default | 8 | 80000 | 768 | 640000 |
128 GB cluster instance for zone-disaster recovery | redis.logic.sharding.drredismdb128g.16db.0rodb.16proxy.default | 16 | 160000 | 1536 | 1280000 |
256 GB cluster instance for zone-disaster recovery | redis.logic.sharding.drredismdb256g.16db.0rodb.16proxy.default | 16 | 160000 | 1536 | 1280000 |
512 GB cluster instance for zone-disaster recovery | redis.logic.sharding.drredismdb512g.32db.0rodb.32proxy.default | 32 | 320000 | 2048 | 2560000 |
Calculation rules for bandwidth values
Each bandwidth value in the preceding table represents the maximum bandwidth for an instance of the corresponding instance type, which is the combined bandwidth of all shards or nodes in the instance.
The bandwidth applies to the upstream and downstream bandwidths. For example, if the bandwidth of an instance is 80 Mbps (10 MB/s), the upstream and downstream bandwidths of the instance are both 80 Mbps (10 MB/s).
NoteIf your instance has unexpected or scheduled traffic peaks, you can adjust the bandwidth of the instance. For more information, see Manually increase the bandwidth of an instance.
The bandwidth limits of Tair and Redis Open-Source Edition refer to the data transfer capacity of individual shards within their respective distributed systems. The limits are generally independent of the network connection types used by clients to connect to the shards.
For information about the FAQ about bandwidth, see FAQ about bandwidth.
FAQ
Q: The zone-disaster recovery specifications for Tair (Redis OSS-compatible) are retired. How can I create an instance that supports zone-disaster recovery?
A: The zone-disaster recovery architecture for Tair (Redis OSS-compatible) has been upgraded. When you create an instance, you can set Zone Type to Dual-zone and specify a Primary Zone and a Secondary Zone.