Redis 4.0 and 5.0 Instance Specifications

This section describes DCS Redis 4.0 and 5.0 instance specifications, including the total memory, available memory, maximum number of connections allowed, 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.

Single-node, master/standby, and Redis Cluster types are available.

Single-Node Instances

**Table 1** Specifications of single-node DCS Redis 4.0 or 5.0 instances
Total Memory (GB)	Available Memory (GB)	Max. Connections (Default/Limit) (Count)	Assured/Maximum Bandwidth (Mbit/s)	Reference Performance (QPS)
0.125	0.125	10,000/10,000	40/40	80,000
0.25	0.25	10,000/10,000	80/80	80,000
0.5	0.5	10,000/10,000	80/80	80,000
1	1	10,000/50,000	80/80	80,000
2	2	10,000/50,000	128/128	80,000
4	4	10,000/50,000	192/192	80,000
8	8	10,000/50,000	192/192	100,000
16	16	10,000/50,000	256/256	100,000
24	24	10,000/50,000	256/256	100,000
32	32	10,000/50,000	256/256	100,000
48	48	10,000/50,000	256/256	100,000
64	64	10,000/50,000	384/384	100,000

Master/Standby Instances

**Table 2** Specifications of master/standby DCS Redis 4.0 or 5.0 instances
Total Memory (GB)	Available Memory (GB)	Max. Connections (Default/Limit) (Count)	Assured/Maximum Bandwidth (Mbit/s)	Reference Performance (QPS)
0.125	0.125	10,000/10,000	40/40	80,000
0.25	0.25	10,000/10,000	80/80	80,000
0.5	0.5	10,000/10,000	80/80	80,000
1	1	10,000/50,000	80/80	80,000
2	2	10,000/50,000	128/128	80,000
4	4	10,000/50,000	192/192	80,000
8	8	10,000/50,000	192/192	100,000
16	16	10,000/50,000	256/256	100,000
24	24	10,000/50,000	256/256	100,000
32	32	10,000/50,000	256/256	100,000
48	48	10,000/50,000	256/256	100,000
64	64	10,000/50,000	384/384	100,000

Redis Cluster Instances

In addition to larger memory, Redis Cluster instances feature more connections allowed, higher bandwidth allowed, and more QPS than single-node and master/standby instances.

**Table 3** Specifications of Redis Cluster DCS Redis 4.0 or 5.0 instances
Specification (GB)	Available Memory (GB)	Shards (Master Nodes)	Max. Connections (Default/Limit) (Count)	Assured/Maximum Bandwidth (Mbit/s)	Reference Performance (QPS)
4	4	3	30,000 /150,000	2304/2304	240,000
8	8	3	30,000 /150,000	2304/2304	240,000
16	16	3	30,000 /150,000	2304/2304	240,000
24	24	3	30,000 /150,000	2304/2304	300,000
32	32	3	30,000 /150,000	2304/2304	300,000
48	48	6	60,000 /300,000	4608/4608	> 300,000
64	64	8	80,000 /400,000	6144/6144	500,000
96	96	12	120,000 /600,000	9216/9216	> 500,000
128	128	16	160,000 /800,000	12,288/12,288	1,000,000
192	192	24	240,000 /1,200,000	18,432/18,432	> 1,000,000
256	256	32	320,000 /1,600,000	24,576/24,576	> 2,000,000
384	384	48	480,000 /2,400,000	36,864/36,864	> 2,000,000
512	512	64	640,000 /3,200,000	49,152/49,152	> 2,000,000
768	768	96	960,000 /4,800,000	73,728/73,728	> 2,000,000
1024	1024	128	1,280,000 /6,400,000	98,304/98,304	> 2,000,000