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Redis 6.0 Instance Specifications

Updated on 2024-11-26 GMT+08:00

This section describes DCS Redis 6.0 instance specifications, including the total memory, available memory, maximum number of connections, maximum/assured bandwidth, and reference performance.

The following metrics are related to the instance specifications:

  • Used memory: You can check the memory usage of an instance by viewing the Memory Usage and Used Memory metrics.
  • Maximum connections: The maximum number of connections allowed is the maximum number of clients that can be connected to an instance. To check the number of connections to an instance, view the Connected Clients metric.
  • QPS represents queries per second, which is the number of commands processed per second.
  • Bandwidth: You can view the Flow Control Times metric to check whether the bandwidth has exceeded the limit.

Currently, DCS for Redis 6.0 supports single-node and master/standbysingle-node, master/standby, and Redis Cluster instances.

Single-Node

Table 1 Specifications of single-node DCS Redis 6.0 instances

Total Memory

(GB)

Available Memory

(GB)

Max. Connections (Default/Limit)

(Count)

Assured/Maximum Bandwidth

(Mbit/s)

Reference Performance

(QPS)

Specification Code (spec_code in the API)

0.125

0.125

10,000/10,000

40/40

50,000

x86: redis.single.xu1.tiny.128

Arm: redis.single.au1.tiny.128

0.25

0.25

10,000/10,000

80/80

50,000

x86: redis.single.xu1.tiny.256

Arm: redis.single.au1.tiny.256

0.5

0.5

10,000/10,000

80/80

50,000

x86: redis.single.xu1.tiny.512

Arm: redis.single.au1.tiny.512

1

1

10,000/50,000

80/80

50,000

x86: redis.single.xu1.large.1

Arm: redis.single.au1.large.1

2

2

10,000/50,000

128/128

50,000

x86: redis.single.xu1.large.2

Arm: redis.single.au1.large.2

4

4

10,000/50,000

192/192

50,000

x86: redis.single.xu1.large.4

Arm: redis.single.au1.large.4

8

8

10,000/50,000

192/192

50,000

x86: redis.single.xu1.large.8

Arm: redis.single.au1.large.8

16

16

10,000/50,000

256/256

50,000

x86: redis.single.xu1.large.16

Arm: redis.single.au1.large.16

24

24

10,000/50,000

256/256

50,000

x86: redis.single.xu1.large.24

Arm: redis.single.au1.large.24

32

32

10,000/50,000

256/256

50,000

x86: redis.single.xu1.large.32

Arm: redis.single.au1.large.32

48

48

10,000/50,000

256/256

50,000

x86: redis.single.xu1.large.48

Arm: redis.single.au1.large.48

64

64

10,000/50,000

384/384

50,000

x86: redis.single.xu1.large.64

Arm: redis.single.au1.large.64

Master/Standby

Table 2 Specifications of master/standby DCS Redis 6.0 instances

Total Memory

(GB)

Available Memory

(GB)

Max. Connections (Default/Limit)

(Count)

Assured/Maximum Bandwidth

(Mbit/s)

Reference Performance

(QPS)

Specification Code (spec_code in the API)

0.125

0.125

10,000/10,000

40/40

50,000

x86: redis.ha.xu1.tiny.r2.128

Arm: redis.ha.au1.tiny.r2.128

0.25

0.25

10,000/10,000

80/80

50,000

x86: redis.ha.xu1.tiny.r2.256

Arm: redis.ha.au1.tiny.r2.256

0.5

0.5

10,000/10,000

80/80

50,000

x86: redis.ha.xu1.tiny.r2.512

Arm: redis.ha.au1.tiny.r2.512

1

1

10,000/50,000

80/80

50,000

x86: redis.ha.xu1.large.r2.1

Arm: redis.ha.au1.large.r2.1

2

2

10,000/50,000

128/128

50,000

x86: redis.ha.xu1.large.r2.2

Arm: redis.ha.au1.large.r2.2

4

4

10,000/50,000

192/192

50,000

x86: redis.ha.xu1.large.r2.4

Arm: redis.ha.au1.large.r2.4

8

8

10,000/50,000

192/192

50,000

x86: redis.ha.xu1.large.r2.8

Arm: redis.ha.au1.large.r2.8

16

16

10,000/50,000

256/256

50,000

x86: redis.ha.xu1.large.r2.16

Arm: redis.ha.au1.large.r2.16

24

24

10,000/50,000

256/256

50,000

x86: redis.ha.xu1.large.r2.24

Arm: redis.ha.au1.large.r2.24

32

32

10,000/50,000

256/256

50,000

x86: redis.ha.xu1.large.r2.32

Arm: redis.ha.au1.large.r2.32

48

48

10,000/50,000

256/256

50,000

x86: redis.ha.xu1.large.r2.48

Arm: redis.ha.au1.large.r2.48

64

64

10,000/50,000

384/384

50,000

x86: redis.ha.xu1.large.r2.64

Arm: redis.ha.au1.large.r2.64

Redis Cluster

  • Specification code: Table 3 only lists the specification codes of instances with 2 replicas (default). The specification names reflect the number of replicas, for example, redis.cluster.xu1.large.r2.4 (2 replicas | 4 GB) and redis.cluster.xu1.large.r1.4 (1 replica | 4 GB).
  • Number of used IP addresses: Number of shards × Number of replicas. For example:

    8 GB | Redis Cluster | 2 replicas | 3 shards: Number of occupied IP addresses = 3 × 2 = 6

  • Available memory per node: Instance available memory/Master node quantity. For example:

    A 64 GB instance has 64 GB available memory and 8 master nodes. The available memory per node is 64/8 = 8 GB.

  • Max. connections per node: Number of instance max. connections/Master node quantity. For example:

    A 24 GB instance has 3 master nodes and the maximum connections limit is 150,000. The maximum connections limit per node = 150,000/3 = 50,000.

NOTE:
The maximum bandwidth and assured bandwidth as shown in the table below is for the entire instance, and not for a single shard. The relationship between the instance bandwidth and the bandwidth of a single shard is as follows:
  • Instance bandwidth = Bandwidth of a single shard × Number of shards
  • For a cluster instance, if the memory per shard is 1 GB, the bandwidth per shard is 384 Mbit/s. If the memory per shard is greater than 1 GB, the bandwidth per shard is 768 Mbit/s.

    For example, if a 24 GB Redis Cluster instance has three shards and the memory per shard is 24/3 = 8 GB (greater than 1 GB), the bandwidth per shard is 768 Mbit/s.

Table 3 Specifications of Redis Cluster DCS Redis 6.0 instances

Total Memory

(GB)

Available Memory

(GB)

Shards (Master Nodes)

Max. Connections (Default/Limit)

(Count)

Assured/Maximum Bandwidth

(Mbit/s)

Reference Performance

(QPS)

Specification Code (spec_code in the API)

4

4

3

30,000/150,000

2,304/2,304

100,000

x86: redis.cluster.xu1.large.r2.4

Arm: redis.cluster.au1.large.r2.4

8

8

3

30,000/150,000

2,304/2,304

100,000

x86: redis.cluster.xu1.large.r2.8

Arm: redis.cluster.au1.large.r2.8

16

16

3

30,000/150,000

2,304/2,304

100,000

x86: redis.cluster.xu1.large.r2.16

Arm: redis.cluster.au1.large.r2.16

24

24

3

30,000/150,000

2,304/2,304

100,000

x86: redis.cluster.xu1.large.r2.24

Arm: redis.cluster.au1.large.r2.24

32

32

3

30,000/150,000

2,304/2,304

100,000

x86: redis.cluster.xu1.large.r2.32

Arm: redis.cluster.au1.large.r2.32

48

48

6

60,000/300,000

4,608/4,608

200,000

x86: redis.cluster.xu1.large.r2.48

Arm: redis.cluster.au1.large.r2.48

64

64

8

80,000/400,000

6,144/6,144

250,000

x86: redis.cluster.xu1.large.r2.64

Arm: redis.cluster.au1.large.r2.64

96

96

12

120,000/600,000

9,216/9,216

400,000

x86: redis.cluster.xu1.large.r2.96

Arm: redis.cluster.au1.large.r2.96

128

128

16

160,000/800,000

12,288/12,288

500,000

x86: redis.cluster.xu1.large.r2.128

Arm: redis.cluster.au1.large.r2.128

192

192

24

240,000/1,200,000

18,432/18,432

500,000

x86: redis.cluster.xu1.large.r2.192

Arm: redis.cluster.au1.large.r2.192

256

256

32

320,000/1,600,000

24,576/24,576

500,000

x86: redis.cluster.xu1.large.r2.256

Arm: redis.cluster.au1.large.r2.256

384

384

48

480,000/2,400,000

36,864/36,864

500,000

x86: redis.cluster.xu1.large.r2.384

Arm: redis.cluster.au1.large.r2.384

512

512

64

640,000/3,200,000

49,152/49,152

500,000

x86: redis.cluster.xu1.large.r2.512

Arm: redis.cluster.au1.large.r2.512

768

768

96

960,000/4,800,000

73,728/73,728

500,000

x86: redis.cluster.xu1.large.r2.768

Arm: redis.cluster.au1.large.r2.768

1024

1024

128

1,280,000/6,400,000

98,304/98,304

500,000

x86: redis.cluster.xu1.large.r2.1024

Arm: redis.cluster.au1.large.r2.1024

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