ESSD AutoPL disks support performance bursts. Excessive burst IOPS (excluding baseline and pre-configured performance) may lead to unexpected performance burst costs. To resolve this issue, ESSD AutoPL disks will adopt a new billing model for performance burst costs (the price cap rule of performance burst). This ensures that even in extreme performance burst scenarios, the performance burst costs remain within a controllable range, eliminating the risk of overspending.
Effective time
August 22, 2024 UTC+8
Adjustment region
All regions
Adjustment content
Pre-adjustment costs
Performance burst costs = Total burst amount * Performance burst unit price
Post-adjustment costs
The price cap rule of performance burst will be adopted. If the maximum burst IO density (maximum burst IOPS/disk capacity) within the billing cycle exceeds 200 IOPS/GiB, the performance burst costs are capped. Details are displayed in the table below.
Total burst IO (IO/hour)
Maximum burst IO density (maximum burst IOPS/GiB)
Performance burst costs
Typical scenario
Less than or equal to 100,000
Not applicable
Free (with a free quota of 100,000 IO, no performance burst costs)
Occasional glitch IO
Greater than 100,000
Less than or equal to 200
Costs not capped
Costs = (Burst IO - 100,000) * Performance burst unit price
Occasional business peak, without exceeding the IOPS cap threshold
Greater than 200
Costs capped
Costs = min((Burst IO - 100,000) * Performance burst unit price, Disk capacity cost * 8)
Extreme load, high IOPS peak pressure, and long duration
For more information, see ESSD AutoPL disks.
For pricing details of ESSD AutoPL disks, see Elastic Compute Service product page.
Adjustment impact
After the new billing model is enabled, your burst costs are reduced with the reduction rate varying based on the burst situation.
If you are using the performance burst feature of ESSD AutoPL disks, after the new billing model is enabled, the performance burst costs are capped once the specified threshold (performance burst IOPS) is reached, thereby reducing burst costs.
You have a free quota of 100,000 IO each hour. Burst IO within the quota limit is not charged.
You can view the performance burst costs and billing details of ESSD AutoPL disks in the Expenses and Costs Console.