This topic describes billable items of PolarDB-X instances and the pricing of the billable items.
Primary instances
Definition: overall fees of enterprise primary PolarDB-X instances, which is the unit price of compute nodes × the number of compute nodes + the unit price of storage nodes × the number of storage nodes, and fees of standard PolarDB-X instances.
Required: Yes.
Billing methods: subscription and pay-as-you-go. For more information about the billing methods, see Billing methods.
Pricing: The price of an instance varies based on its configurations, such as the region, instance type, and storage capacity. For more information, visit the buy page.
NoteIf you set the billing method of storage to pay-as-you-go, subscription instances generate pay-as-you-go billable items.
Read-only instances
Definition: overall fees of enterprise read-only PolarDB-X instances, which is the unit price of compute nodes × the number of compute nodes + the unit price of storage nodes × the number of storage nodes.
NotePolarDB-X Standard Edition does not support read-only instances.
Required: No.
Billing methods: subscription and pay-as-you-go. For more information about the billing methods, see Billing methods.
Pricing: The price of an instance varies based on its configurations, such as the region, instance type, and storage capacity. For more information, visit the buy page.
NoteIf you set the billing method of storage to pay-as-you-go, subscription instances generate pay-as-you-go billable items.
Storage
Definition: storage fees of PolarDB-X instances, including primary instances, read-only instances, and secondary clusters in global database networks (GDNs).
Required: Yes.
Billing methods: pay-as-you-go and subscription.
Pricing: The following table describes the pricing for storage of primary instances and read-only instances.
Type
Billing method
Unit price
Primary instance
Pay-as-you-go
CNY 0.0017 per GB-hour
Subscription
CNY 0.001 per GB-hour
Read-only instance
Pay-as-you-go
CNY 0.00136 per GB-hour
Subscription
CNY 0.001 per GB-hour
Backup
Definition: fees for storage of backup files generated by automatic backup and manual backup of PolarDB-X instances.
Required:
Basic backup: Yes.
Remote backup: No.
Billing methods: PolarDB-X offers a free quota on backup storage. If the total size of your backup files exceeds the free quota, you are charged for the excess backup storage that you consume based on an hourly basis. The free quota is as follows:
Instances that use local disks: 50% of the actual storage capacity of an instance.
Pricing:
Type
Billable item
Unit price
Basic backup (single-region backup)
Storage capacity for backups
CNY 0.00021 per GB-hour
Cross-region backup
Storage capacity for backups
CNY 0.00021 per GB-hour
Network traffic
For more information, see Network traffic fees.
Columnar
Definition: a value-added service that is provided by PolarDB-X Enterprise Edition to analyze and query accelerated data transmission.
Required: No.
Billing methods (planned): subscription and pay-as-you-go.
Pricing: free of charge in public preview.
NoteThe columnar feature is free of charge. You are charged for the index storage by Object Storage Service (OSS).
GDN
Definition: a value-added service provided by PolarDB-X Enterprise Edition for cross-region local read and failovers.
Required: No.
Billing methods: subscription and pay-as-you-go.
Pricing:
Instance types and storage: The price of an instance depends on the region, types, and storage. For more information, go to the buy page.
Cross-region network traffic: free or charge.
Cold data archiving
Definition: a value-added service provided by PolarDB-X Enterprise Edition to automatically archive data by time or other fields to save storage capacity.
Required: No.
Billing methods: pay-as-you-go.
Pricing:
Instance types and storage: The archive feature is free of charge. You are charged for storage by OSS.