Yearly/Monthly

In the yearly/monthly billing mode, you pay before using resources. It is suitable if you need stable resources and want lower costs. By selecting the yearly/monthly mode, you can pre-purchase cloud service resources and gain certain price discounts. This section describes the billing rules for yearly/monthly RocketMQ instances.

Scenario

In yearly/monthly mode, you need to first pay for a certain duration. This mode is suitable for services with the following characteristics:

Stable services: enterprises' official websites, online malls, blogs, and others. Yearly/Monthly billing provides higher cost efficiency.
Long-term projects: scientific research projects, large-scale events, and others. Yearly/Monthly billing facilitates stable supply of resources throughout the project.
Service peak estimation: e-commerce promotion season, festivals, holidays, and others. Resources insufficiency can be avoided by pre-purchasing resources for peak demands.
High data security: For services that require high data security, yearly/monthly billing facilitates continuous usage of the resources.

Billing Items

DMS for RocketMQ charges you for your RocketMQ instance and disk storage space. They support yearly/monthly billing.

**Table 1** Billing items
Billing Item	Description
Instance	V4.8.0 instance: broker flavor and quantity V5.x basic edition instance: TPS and deployment type
Storage space	Total storage space fees (Single broker's storage space × Broker quantity). The storage space of a yearly/monthly RocketMQ instance is also billed in the yearly/monthly mode.

Assume that you plan to purchase a RocketMQ 4.8.0 instance with 300 GB storage space. At the bottom of the Buying a RocketMQ Instance page, you can view price details, as shown Figure 1.

Figure 1 Example price

The price includes:

Instance fee: Calculated based on the selected broker flavor and quantity.
Storage space fee: Calculated based on the selected disk type and total disk storage space (Single broker's storage space × Broker quantity).

Billing Period

The billing period of yearly/monthly RocketMQ instance is determined by purchase duration (UTC+8). The billing period starts from the time you activate or renew your subscription (precise to seconds), and ends at 23:59:59 on the expiration date.

For example, if you purchased a RocketMQ instance for one month on Mar 08, 2023, 15:50:04, the billing period is from Mar 08, 2023, 15:50:04 to Apr 08, 2023, 23:59:59.

Billing Samples

Assume that you purchased a yearly/monthly RocketMQ 4.8.0 instance (rocketmq.4u8g.cluster.small x 1, ultra-high I/O 300 GB total storage space) in AP-Singapore on Mar 08, 2023, 15:50:04. The billing items include the instance (broker flavor and quantity) and storage space (ultra-high I/O 300 GB). Assume the subscription is for one month, and will be manually renewed for one month before it expires:

The first billing period: Mar 08, 2023, 15:50:04–Apr 08, 2023, 23:59:59
The second billing period: Apr 08, 2023, 23:59:59–May 08, 2023, 23:59:59

You need to pay for each billing period first, and RocketMQ instance resources are charged individually. The billing formula is shown in Table 2.

**Table 2** Billing formulas
Resource Type	Billing Formula	Resource Unit Price
Instance	Instance specification unit price x Purchase duration	For instance prices, see Product Pricing Details.
Storage space	Storage space unit price × Purchase period	For storage prices, see Product Pricing Details.

Figure 2 shows the billing calculation.

The prices in the following two pictures are for reference only. Actual prices are subject to Product Pricing Details.

Figure 2 Sample fees calculation of a yearly/monthly RocketMQ instance (AP-Singapore)

Impact on Billing After Specification Change

If the current resource specifications of your yearly/monthly RocketMQ instance no longer meet your needs, you can change the specifications on the RocketMQ instance console. The system calculates billing change according to the following rules:

Specification upgrade: You need to pay the price difference.
Specification downgrade: Huawei Cloud will refund you the price difference.

Take a specification upgrade without discounts as an example. Assume that you purchased a yearly/monthly RocketMQ instance (rocketmq.4u8g.cluster x 1) for one month in AP-Singapore on Apr 08, 2023, and you plan to change the specification to rocketmq.8u16g.cluster x 1 on Apr 18, 2023. The price for the old specification is USD1344/month, and the new one is USD2592/month. The formula is as follows:

Specification upgrade fee = New specification price × Remaining period – Old specification price × Remaining period

The remaining period in the formula is the remaining days of each calendar month divided by the maximum days of corresponding calendar month. In this sample, the remaining period = 12/30 (the remaining days of April/the maximum days of April) + 8/31 (the remaining days of May/the maximum days of May) = 0.6581. Then, the upgrade fees = 2592 × 0.6581 – 1344 × 0.6581 = USD821.31.

For more information, see Pricing of a Changed Specification.

Impact of Expiration

Figure 3 describes the status of each stage of a yearly/monthly RocketMQ instance. After purchase, the RocketMQ instance runs properly within the billing period, and this period is the validity period. When the RocketMQ instance expires and you do not renew it, it goes into the grace period and then the retention period.

Figure 3 Life cycle of a yearly/monthly RocketMQ instance

Expiration Reminder

From the 7th day before a yearly/monthly RocketMQ instance expires, the system will send an expiration reminder to the creator of Huawei Cloud account by email, SMS, and internal message.

Impact of Expiration

If a resource has expired and you do not renew it, it enters the grace period.
When your yearly/monthly RocketMQ instance expires, it goes into the grace period and its status turns to Expired. Within the grace period, you can access your RocketMQ instance, but the following operations will be restricted.
- Changing specifications.
If the resource grace period ends, the resource enters the retention period.
If you do not renew your yearly/monthly RocketMQ instance before the grace period ends, it goes into the retention period and its status turns to Frozen. You cannot perform any operations on your yearly/monthly RocketMQ instance in the retention period.
If the resource retention period ends and you do not renew the resource, it will be released permanently.
Renew yearly/monthly RocketMQ instances within the retention period. Otherwise, they will be released and their data cannot be restored.