- User Guide
- Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Overview
- Usage Limits
- Creating Cloud Disks
- Attaching Cloud Disks
- Initializing Cloud Disks
- Expanding Cloud Disks
- Overview
- Expanding Cloud Disks
- Extending System Disk Partitions and File Systems Online
- Extending Data Disk Partitions and File Systems (Windows)
- Extending Data Disk Partitions and File Systems (Linux)
- Detaching Cloud Disks
- Viewing Cloud Disk Information
- Terminating Cloud Disks
- Adjusting Cloud Disk Performance
- Cloud Disk Data Protection Configuration
- Cloud Disk Data Backup Point
- Managing Snapshots
- Monitoring and Alarms
- Practical Tutorial
- Troubleshooting
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Snapshot APIs
- ApplySnapshot
- DeleteSnapshots
- DescribeSnapshots
- CreateSnapshot
- ModifySnapshotAttribute
- UnbindAutoSnapshotPolicy
- DescribeDiskAssociatedAutoSnapshotPolicy
- DescribeAutoSnapshotPolicies
- DeleteAutoSnapshotPolicies
- CreateAutoSnapshotPolicy
- BindAutoSnapshotPolicy
- ModifyAutoSnapshotPolicyAttribute
- ModifySnapshotsSharePermission
- DescribeSnapshotSharePermission
- GetSnapOverview
- CopySnapshotCrossRegions
- Cloud Disk APIs
- CreateDiskBackup
- ModifyDiskAttributes
- ResizeDisk
- DescribeInstancesDiskNum
- CreateDisks
- AttachDisks
- InquiryPriceCreateDisks
- DescribeDisks
- DetachDisks
- DescribeDiskConfigQuota
- InquiryPriceResizeDisk
- TerminateDisks
- ModifyDiskExtraPerformance
- InquirePriceModifyDiskExtraPerformance
- InitializeDisks
- ModifyDiskBackupQuota
- InquirePriceModifyDiskBackupQuota
- DescribeDiskBackups
- DeleteDiskBackups
- ApplyDiskBackup
- Data Types
- Error Codes
- FAQs
- Cross-region Replication
- CBS Service Level Agreement
- Contact Us
- Glossary
- User Guide
- Announcements
- Product Introduction
- Purchase Guide
- Getting Started
- Operation Guide
- Operation Overview
- Usage Limits
- Creating Cloud Disks
- Attaching Cloud Disks
- Initializing Cloud Disks
- Expanding Cloud Disks
- Overview
- Expanding Cloud Disks
- Extending System Disk Partitions and File Systems Online
- Extending Data Disk Partitions and File Systems (Windows)
- Extending Data Disk Partitions and File Systems (Linux)
- Detaching Cloud Disks
- Viewing Cloud Disk Information
- Terminating Cloud Disks
- Adjusting Cloud Disk Performance
- Cloud Disk Data Protection Configuration
- Cloud Disk Data Backup Point
- Managing Snapshots
- Monitoring and Alarms
- Practical Tutorial
- Troubleshooting
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Snapshot APIs
- ApplySnapshot
- DeleteSnapshots
- DescribeSnapshots
- CreateSnapshot
- ModifySnapshotAttribute
- UnbindAutoSnapshotPolicy
- DescribeDiskAssociatedAutoSnapshotPolicy
- DescribeAutoSnapshotPolicies
- DeleteAutoSnapshotPolicies
- CreateAutoSnapshotPolicy
- BindAutoSnapshotPolicy
- ModifyAutoSnapshotPolicyAttribute
- ModifySnapshotsSharePermission
- DescribeSnapshotSharePermission
- GetSnapOverview
- CopySnapshotCrossRegions
- Cloud Disk APIs
- CreateDiskBackup
- ModifyDiskAttributes
- ResizeDisk
- DescribeInstancesDiskNum
- CreateDisks
- AttachDisks
- InquiryPriceCreateDisks
- DescribeDisks
- DetachDisks
- DescribeDiskConfigQuota
- InquiryPriceResizeDisk
- TerminateDisks
- ModifyDiskExtraPerformance
- InquirePriceModifyDiskExtraPerformance
- InitializeDisks
- ModifyDiskBackupQuota
- InquirePriceModifyDiskBackupQuota
- DescribeDiskBackups
- DeleteDiskBackups
- ApplyDiskBackup
- Data Types
- Error Codes
- FAQs
- Cross-region Replication
- CBS Service Level Agreement
- Contact Us
- Glossary
The performance of a cloud disk depends on its capacity. You can improve the performance to the maximum level by adjusting its capacity. After the basic performance of an enhanced SSD reaches the ceiling, you can configure and adjust extra performance to achieve even higher performance anytime when prerequisites are met. For more information, see Enhanced SSD Performance.
Note:
Currently, only Enhanced SSD supports independent performance adjustment.
The extra performance can be independently adjusted only after the basic performance reaches the ceiling.
The performance adjustment will not affect your cloud disks or businesses.
Performance Adjustment Billing
Performance upgrade
For cloud disks featuring monthly subscription: you need to make up the price difference between new and old configurations for the rest of the lifecycle. You can view the actual details on the payment page.
For pay-as-you-go cloud disks: the performance upgrade takes effect immediately, and the cloud disks will be charged by the new configuration.
Performance downgrade
For cloud disks featuring monthly subscription: the price difference between the value of new configurations and the value in the rest of the lifecycle is refunded. You can view the actual details on the payment page.
For pay-as-you-go cloud disks: the performance upgrade takes effect immediately, and the cloud disks will be charged by the new configuration.
Performance Upgrade
When prerequisites are met, you can upgrade performance in the following ways:
1. Log in to the CBS console.
2. Select the region and the cloud disk that requires performance adjustment.
3. Select More > Adjust Performance for the target cloud disk.
4. Select a target configuration in the pop-up window.
5. Select descriptions and start the adjustment.
You can use the
ModifyDiskExtraPerformance API to upgrade performance of a specified cloud disk. For detailed directions, see ModifyDiskExtraPerformance.Performance Downgrade
When prerequisites are met, you can downgrade performance in the following ways:
1. Log in to the CBS console.
2. Select the region and the cloud disk that requires performance adjustment.
3. Select More > Adjust Performance for the target cloud disk.
4. Select a target configuration in the pop-up window.
5. Select descriptions and start the adjustment.
You can use the
ModifyDiskExtraPerformance API to downgrade performance of a specified cloud disk. For detailed directions, see ModifyDiskExtraPerformance.
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