Baidu AI cloud database DocDB for MongoDB product provides the prepaid model of the annual and monthly package. The longer the purchase period is, the higher the discount will be.

Three Node Replica Set Structure Instances

Billing formula

Total price of Baidu AI Cloud database DocDB for MongoDB product = instance price + disk space price

Prepaid price of three mode replica set architecture instance

Type	Maximum IOPS	Maximum linking number	CNY/month	CNY/year (15% off)	CNY/2 years (30% off)	CNY/3 years (50% off)
1 core 2 GB	2000	500	290	2958	4872	5220
2 cores 4 GB	4000	1000	590	6018	9912	10620
4 cores 8 GB	8000	2000	1080	11016	18144	19440
4 cores 16 GB	11000	3000	1500	15300	25200	27000
8 cores 16 GB	13000	4000	2050	20910	34440	36900
8 cores 32 GB	15000	8000	3960	40392	66528	71280
16 cores 64 GB	18000	16000	7900	80580	132720	142200

The prepaid price of disk space for the three-node replica set structure instance is as follows:

Price (CNY/GB/month)	CNY/GB/ year (15% off)	CNY/GB/2 years (30% off)	CNY/GB/3 years (50% off)
2.23	22.746	37.464	40.14

Shard cluster architecture instance

Pricing formula

Price of MongoDB shard cluster architecture instance=price of Mongos node+ price of Shard node+price pf ConfigServer component

• Price of Shard node=combined price of Shard node and CPU memory specification+price of Shard disk
• Pricing of Mongos node=combined price ofMongos node and CPU memory specification
• Pricing of ConfigServer node=combined price of ConfigServer node and CPU memory specification + price of ConfigServer disk

Prepaid price of Shard node

Price of CPU memory is as follows.

Type	Maximum IOPS	CNY/month	CNY/year (15% off)	CNY/2 years (30% off)	CNY/3 years (50% off)
1 core 2 GB	2000	290	2958	4872	5220
2 cores 4 GB	4000	590	6018	9912	10620
4 cores 8 GB	8000	1080	11016	18144	19440
4 cores 16 GB	11000	1500	15300	25200	27000
8 cores 16 GB	13000	2050	20910	34440	36900
8 cores 32 GB	15000	3960	40392	66528	71280
16 cores 64 GB	18000	7900	80580	132720	142200

• Note: the number of nodes n=2-32

The disk space prepaid price for the Shard node is as follows.

Price (CNY/GB/month)	CNY/GB/ year (15% off)	CNY/GB/2 years (30% off)	CNY/GB/3 years (50% off)
2.23	22.746	37.464	40.14

• Note: 5-2,000 GB disk is optional

Prepaid price of Mongos node

Price of CPU memory is as follows.

Type	Maximum linking number	CNY/month	CNY/year (15% off)	CNY/2 years (30% off)	CNY/3 years (50% off)
1 core 2 GB	500	97	989.4	1629.6	1746
2 cores 4 GB	1000	197	2009.4	3309.6	3546
4 cores 8 GB	2000	360	3672	6048	6480
4 cores 16 GB	3000	500	5100	8400	9000
8 cores 16 GB	4000	684	6976.8	11491.2	12312
8 cores 32 GB	8000	1320	13464	22176	23760
16 cores 64 GB	16000	2634	26866.8	44251.2	47412

• Note: The number of nodes n=2-32

Prepaid price of ConfigServer node

Specification

Type	CNY/month	CNY/year (15% off)	CNY/2 years (30% off)	CNY/3 years (50% off)
1 core 2 GB	290	2958	4872	5220

The prepaid disk space prices for ConfigServer nodes are as follows:

Price (CNY/GB/month)	CNY/GB/ year (15% off)	CNY/GB/2 years (30% off)	CNY/GB/3 years (50% off)
2.23	22.746	37.464	40.14

• Notice: 20 GB disk is optional.