This topic describes the specifications and pricing of PolarDB for Oracle, including billing methods, billable items, and the pricing of compute nodes, storage, data backups, and SQL Explorer.
Billing methods
PolarDB for Oracle supports the following billing methods:
- Subscription
If you use the subscription billing method, you must pay for a compute cluster when you create the cluster. The compute cluster consists of one primary node and one read-only node. You are charged for only the consumed storage. The charges are deducted from your account balance based on the consumed storage.
- Pay-as-you-go
If you use the pay-as-you-go billing method, you pay for the resources after you use them. You are charged for the compute clusters and the consumed storage by hour. The charges are deducted from your account balance based on the consumed resources.
Billable items
The following table describes the billable items of PolarDB for Oracle clusters.
Billable item | Description |
Compute cluster that has a primary node and one or more read-only nodes | Subscription or pay-as-you-go. |
Storage |
|
SQL Explorer | After you enable SQL Explorer, the billing method is specified as pay-as-you-go. For more information, see SQL Explorer. |
Data backup | In PolarDB, the backup feature is available for free. You are charged for only the storage of backup files. For more information, see Backup method 2: Manual backup. |
Compute node pricing
All the nodes of PolarDB for Oracle are dedicated nodes. The dedicated nodes indicate that the CPU, memory, storage, and I/O resources that are allocated to the nodes are dedicated to these nodes and are not shared by other nodes. Therefore, the performance of the dedicated nodes is more stable and reliable. The following table describes the node specifications that are available in PolarDB for Oracle.
Node type | CPU and memory | Maximum storage capacity | Maximum number of connections | Internal network bandwidth | Maximum IOPS | I/O bandwidth |
polar.o.x4.medium | 2 cores 8 GB | 5 TB | 800 | 1 Gbps | 16,000 | 1 Gbps |
polar.o.x4.large | 4 cores 16 GB | 10 TB | 1600 | 10 Gbps | 64,000 | 4 Gbps |
polar.o.x4.xlarge | 8 cores 32 GB | 10 TB | 3,200 | 10 Gbps | 128,000 | 8 Gbps |
polar.o.x8.xlarge | 8 cores 64 GB | 30 TB | 10,000 | 10 Gbps | 160,000 | 10 Gbps |
polar.o.x8.2xlarge | 16 cores 128 GB | 50 TB | 12,000 | 10 Gbps | 256,000 | 16 Gbps |
polar.o.x8.4xlarge | 32 cores 256 GB | 50 TB | 20,000 | 10 Gbps | 384,000 | 24 Gbps |
polar.o.x8.8xlarge | 64 cores 512 GB | 100 TB | 51,200 | 10 Gbps | 409,600 | 24 Gbps |
polar.o.x8.12xlarge | 88 cores 710 GB | 100 TB | 76,800 | 25 Gbps | 512,000 | 32 Gbps |
- A cluster that has 2 CPU cores and 8 GB memory provides the basic specifications that are required in tests, trials, and other light load scenarios. We recommend that you do not use the clusters of this type in heavy-load production environments. In production environments, we recommend that you use a cluster that has 8 CPU cores and 32 GB memory or higher specifications.
- You can select a node type for the primary node when you create a cluster. The same type is automatically applied to read-only nodes.
- The maximum number of IOPS is a theoretically calculated value.
- The maximum number of connections for a cluster varies based on the node specifications of the cluster. If you add nodes to a cluster, the number of connections for the cluster does not change.
- If you have higher storage requirements, you can submit a ticket to contact customer services to increase the maximum storage capacity to 100 TB.
Specification | Chinese Mainland | China (Hong Kong) | US (Silicon Valley) | Singapore (Singapore) | Malaysia (Kuala Lumpur) | Indonesia (Jakarta) | Germany (Frankfurt) | Japan (Tokyo) | |
Node type | CPU and memory | ||||||||
polar.o.x4.medium | 2 cores 8 GB | USD 57/month USD 0.12/hour | USD 99/month USD 0.21/hour | USD 81/month USD 0.17/hour | USD 99/month USD 0.21/hour | USD 99/month USD 0.21/hour | USD 96/month USD 0.21/hour | USD 87/month USD 0.19/hour | USD 83/month USD 0.18/hour |
polar.o.x4.large | 4 cores 16 GB | USD 202/month USD 0.42/hour | USD 384/month USD 0.80/hour | USD 312/month USD 0.65/hour | USD 384/month USD 0.80/hour | USD 384/month USD 0.80/hour | USD 352/month USD 0.74/hour | USD 343/month USD 0.72/hour | USD 322/month USD 0.68/hour |
polar.o.x4.xlarge | 8 cores 32 GB | USD 403/month USD 0.84/hour | USD 766/month USD 1.60/hour | USD 624/month USD 1.30/hour | USD 766/month USD 1.60/hour | USD 766/month USD 1.60/hour | USD 705/month USD 1.47/hour | USD 685/month USD 1.43/hour | USD 645/month USD 1.35/hour |
polar.o.x8.xlarge | 8 cores 64 GB | USD 645/month USD 1.35/hour | USD 966/month USD 2.02/hour | USD 806/month USD 1.68/hour | USD 966/month USD 2.02/hour | USD 966/month USD 2.02/hour | USD 896/month USD 1.87/hour | USD 846/month USD 1.77/hour | USD 826/month USD 1.72/hour |
polar.o.x8.2xlarge | 16 cores 128 GB | USD 1,288/month USD 2.69/hour | USD 1,932/month USD 4.03/hour | USD 1,611/month USD 3.36/hour | USD 1,932/month USD 4.03/hour | USD 1,932/month USD 4.03/hour | USD 1,791/month USD 3.74/hour | USD 1,691/month USD 3.53/hour | USD 1,651/month USD 3.44/hour |
polar.o.x8.4xlarge | 32 cores 256 GB | 2,577 USD 2,577/month USD 5.37/hour | USD 3,864/month USD 8.05/hour | USD 3,220/month USD 6.71/hour | USD 3,864/month USD 8.05/hour | USD 3,864/month USD 8.05/hour | USD 3,538/month USD 7.47/hour | USD 3,381/month USD 7.05/hour | USD 3,301/month USD 6.88/hour |
polar.o.x8.8xlarge | 64 cores 512 GB | USD 5,152/month USD 10.74/hour | USD 7,727/month USD 16.10/hour | USD 6,439/month USD 13.42/hour | USD 7,727/month USD 16.10/hour | USD 7,727/month USD 16.10/hour | USD 7,164/month USD 14.93/hour | USD 7,439/month USD 15.50/hour | USD 7,262/month USD 15.13/hour |
polar.o.x8.12xlarge | 88 cores 710 GB | USD 7,084/month USD 14.76/hour | USD 10,625/month USD 22.14/hour | USD 8,854/month USD 18.45/hour | USD 10,625/month USD 22.14/hour | USD 10,625/month USD 22.14/hour | USD 9,850/month USD 20.53/hour | USD 9,398/month USD 19.58/hour | 9,075 USD 9,075/month USD 18.91/hour |
Storage pricing
Pay-as-you-go
- Chinese mainland: USD 0.00077/GB/hour
- China (Hong Kong) and regions outside China: USD 0.00085/GB/hour
Subscription
If the data size is large, we recommend that you purchase storage plans. Compared with the pay-as-you-go billing method, subscription-based storage plans offer additional discounts. Higher discounts are provided for larger storage plans. For more information about how to purchase a storage plan, see Purchase a storage plan.
Data backup pricing
The backup and restoration features of PolarDB for Oracle are available for free. Only storage fees are charged. In PolarDB for Oracle, the storage fees are calculated based on the storage that is consumed by the backup files of data and logs and the retention periods of these backup files.
Backup type | Free quota | Billing rule |
Level-1 backups | Database storage usage × 50% You can view the database storage usage of a cluster on the Overview page of the cluster in the PolarDB console. | Storage fee per hour = (Total physical storage of level-1 backups - Free quota) × Unit price per hour
For example, if the total physical storage of level-1 backups is 700 GB and the database storage usage is 1,000 GB, the storage fee per hour is USD 0.0928. The fee is calculated based on the following formula: [700 GB - (1,000 GB × 50%)] × USD 0.000464/GB = USD 0.0928. |
Level-2 backups | None. | Storage fee per hour = Total physical storage of level-2 backups × Unit price per hour For example, if the total physical storage of level-2 backups is 1,000 GB, the storage fee per hour is USD 0.0325. The fee is calculated based on the following formula: 1,000 GB × USD 0.0000325/GB = USD 0.0325. |
Log backups | 100 GB | Storage fee per hour = (Total physical storage of log backups - 100 GB) × Unit price per hour For example, if the total physical storage of log backups is 1,000 GB, the storage fee per hour is USD 0.02925. The fee is calculated based on the following formula: (1,000 GB - 100 GB) × USD 0.0000325/GB = USD 0.02925. |
SQL Explorer pricing
You are charged for SQL Explorer based on the storage that is consumed by audit logs.
- Chinese mainland: USD 0.0013/GB/hour
- China (Hong Kong) and regions outside China: USD 0.0019/GB/hour
FAQ
- What is the price if I add a read-only node?
The price of a read-only node is the same as that of the primary node. For more information, see Compute node pricing.
- Is the maximum storage capacity doubled after I add a read-only node?
No, the storage capacity is not doubled after you add a read-only node. PolarDB for Oracle uses an architecture where computing is decoupled from storage. The read-only nodes that you purchase are used for computing. If you add read-only nodes to your cluster, the storage capacity of the cluster does not change.
A serverless architecture is used for storage. Therefore, you do not need to select the capacity when you purchase a cluster. The capacity is automatically increased online when the amount of data increases. You are charged for only the consumed storage. The maximum storage capacity varies based on cluster specifications. If you want to increase the maximum storage capacity, upgrade your cluster specifications. For more information, see Change the specifications of a cluster.