If you use the pay-as-you-go + storage plan billing method, the storage plans are first used to offset the fees of the storage capacity that are consumed by your cluster. After your storage plans are exhausted, you are charged for the excess storage capacity on a pay-as-you-go basis. This topic describes the billing rules for the pay-as-you-go + storage plan billing method.
Pricing of storage plans
Capacity (GB) | Regions in the Chinese mainland (USD/month) (1.7% to 47.0% off compared with the pay-as-you-go billing method) | Hong Kong (China) and regions outside China (USD/month) (1.6% to 46.6% off compared with the pay-as-you-go billing method) |
50 | 28 (No discount) | 31 (No discount) |
100 | 55 (approximately 1.7% off) | 61 (approximately 1.6% off) |
200 | 109 (approximately 2.7% off) | 121 (approximately 2.4% off) |
300 | 163 (approximately 3% off) | 182 (approximately 2.6% off) |
500 | 271 (approximately 3.2% off) | 302 (approximately 2.6% off) |
1,000 | 490 (approximately 12.5% off) | 550 (approximately 11.3% off) |
2,000 | 980 (approximately 12.5% off) | 1,090 (approximately 12.1% off) |
3,000 | 1,210 (approximately 28.0% off) | 1,340 (approximately 28.0% off) |
5,000 | 2,020 (approximately 28.0% off) | 2,230 (approximately 28.1% off) |
10,000 | 3,260 (approximately 41.8% off) | 3,630 (approximately 41.5% off) |
20,000 | 6,510 (approximately 41.9% off) | 7,250 (approximately 41.5% off) |
30,000 | 9,760 (approximately 42.0% off) | 10,870 (approximately 41.5% off) |
50,000 | 14,860 (approximately 47.0% off) | 16,550 (approximately 46.6% off) |
100,000 | 29,720 (approximately 47.0% off) | 33,110 (approximately 46.6% off) |
200,000 | 59,440 (approximately 47.0% off) | 66,220 (approximately 46.6% off) |
PolarDB provides the price calculator and resource plan calculator. You can use the calculators to obtain information about the product pricing, estimate costs, and select a product type that meets your business requirements.
Price calculator: allows you to estimate the overall cost based on the details and storage capacity of the cluster that you select.
Resource plan calculator: allows you to estimate required compute capacity and storage capacity based on your business requirements and usage duration. The calculator can also provide recommendations on the specifications of storage plans and compute plans.
Deduction rules for storage plans
Storage plans can be used only on clusters that use the pay-as-you-go billing method for storage, and cannot be used on clusters that use the subscription billing method for storage.
Storage plans can be used to offset the fees of consumed storage capacity based on specific ratios. The following table lists the ratios.
Storage type | Offset factor | Storage capacity offset by a 1-GB storage plan (regions in the Chinese mainland) | Storage capacity offset by a 1-GB storage plan (Hong Kong (China) and regions outside China) |
PSL4 (Hot standby storage cluster enabled) | 0.65 | 1.54 GB | 1.54 GB |
PSL4 (Hot standby storage cluster disabled) | 0.325 | 3.08 GB | 3.08 GB |
PSL5 (Hot standby storage cluster enabled) | 1 | 1 GB | 1 GB |
PSL5 (Hot standby storage cluster disabled) | 0.5 | 2 GB | 2 GB |
For example, if you purchase a 50-GB storage plan for a cluster that is deployed in a region inside the Chinese mainland, uses PSL4 to store data, and has the hot standby storage cluster feature enabled, the storage plan can be used to deduct the storage capacity of 76.92 GB (1/0.65 × 50). You are charged for the excess storage on a pay-as-you-go basis.
The following table lists the actual storage capacity that can be deducted from storage plans in regions inside the Chinese mainland.
Capacity of a storage plan (GB) | PSL4 (GB) | PSL5 (GB) |
50 (Hot standby storage cluster enabled) | 76.92 | 50 |
50 (Hot standby storage cluster disabled) | 153.84 | 100 |
100 (Hot standby storage cluster enabled) | 153.84 | 100 |
100 (Hot standby storage cluster disabled) | 307.69 | 200 |
200 (Hot standby storage cluster enabled) | 307.69 | 200 |
200 (Hot standby storage cluster disabled) | 615.38 | 400 |
300 (Hot standby storage cluster enabled) | 461.54 | 300 |
300 (Hot standby storage cluster disabled) | 923.08 | 600 |
500 (Hot standby storage cluster enabled) | 769.23 | 500 |
500 (Hot standby storage cluster disabled) | 1,538.46 | 1,000 |
1,000 (Hot standby storage cluster enabled) | 1,538.46 | 1,000 |
1,000 (Hot standby storage cluster disabled) | 3,076.92 | 2,000 |
2,000 (Hot standby storage cluster enabled) | 3,076.92 | 2,000 |
2,000 (Hot standby storage cluster disabled) | 6,153.84 | 4,000 |
3,000 (Hot standby storage cluster enabled) | 4,615.38 | 3,000 |
3,000 (Hot standby storage cluster disabled) | 9,230.76 | 6,000 |
4,000 (Hot standby storage cluster enabled) | 6,153.85 | 4,000 |
4,000 (Hot standby storage cluster disabled) | 12,307.7 | 8,000 |
5,000 (Hot standby storage cluster enabled) | 7,692.31 | 5,000 |
5,000 (Hot standby storage cluster disabled) | 15,384.62 | 10,000 |
6,000 (Hot standby storage cluster enabled) | 9,230.77 | 6,000 |
6,000 (Hot standby storage cluster disabled) | 18,461.54 | 12,000 |
7,000 (Hot standby storage cluster enabled) | 10,769.23 | 7,000 |
7,000 (Hot standby storage cluster disabled) | 21,538.46 | 14,000 |
8,000 (Hot standby storage cluster enabled) | 12,307.69 | 8,000 |
8,000 (Hot standby storage cluster disabled) | 24,615.38 | 16,000 |
9,000 (Hot standby storage cluster enabled) | 13,846.15 | 9,000 |
9,000 (Hot standby storage cluster disabled) | 27,692.3 | 18,000 |
10,000 (Hot standby storage cluster enabled) | 15,384.62 | 10,000 |
10,000 (Hot standby storage cluster disabled) | 30,769.24 | 20,000 |
15,000 (Hot standby storage cluster enabled) | 23,076.92 | 15,000 |
15,000 (Hot standby storage cluster disabled) | 46,153.84 | 30,000 |
20,000 (Hot standby storage cluster enabled) | 30,769.24 | 20,000 |
20,000 (Hot standby storage cluster disabled) | 61,538.48 | 40,000 |
25,000 (Hot standby storage cluster enabled) | 38,461.54 | 25,000 |
25,000 (Hot standby storage cluster disabled) | 76,923.08 | 50,000 |
30,000 (Hot standby storage cluster enabled) | 46,153.846 | 30,000 |
30,000 (Hot standby storage cluster disabled) | 92,307.692 | 60,000 |
40,000 (Hot standby storage cluster enabled) | 61,538.46 | 40,000 |
40,000 (Hot standby storage cluster disabled) | 123,076.92 | 80,000 |
50,000 (Hot standby storage cluster enabled) | 76,923.08 | 50,000 |
50,000 (Hot standby storage cluster disabled) | 153,846.16 | 100,000 |
60,000 (Hot standby storage cluster enabled) | 92,307.69 | 60,000 |
60,000 (Hot standby storage cluster disabled) | 184,615.38 | 120,000 |
70,000 (Hot standby storage cluster enabled) | 107,692.31 | 70,000 |
70,000 (Hot standby storage cluster disabled) | 215,384.62 | 140,000 |
80,000 (Hot standby storage cluster enabled) | 123,076.92 | 80,000 |
80,000 (Hot standby storage cluster disabled) | 246,153.84 | 160,000 |
90,000 (Hot standby storage cluster enabled) | 138,461.54 | 90,000 |
90,000 (Hot standby storage cluster disabled) | 276,923.08 | 180,000 |
100,000 (Hot standby storage cluster enabled) | 153,846.15 | 100,000 |
100,000 (Hot standby storage cluster disabled) | 307,692.3 | 200,000 |
200,000 (Hot standby storage cluster enabled) | 307,692.3 | 200,000 |
200,000 (Hot standby storage cluster disabled) | 615,384.6 | 400,000 |
After your storage plans are exhausted, you are charged for the excess storage capacity on a pay-as-you-go basis. For more information about billing rules, see Pay-as-you-go.