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Last updated：2021-08-03 18:56:33
This document describes the limits on using KEC and related services.
| Item | Description | Method of extending the limit |
|---|---|---|
| User requirements for creating a KEC instance | Real-name verification | None |
| Requirements for creating Pay-As-You-Go resources | Enterprise real-name verification | None |
| Requirements for creating Pay-As-You-Go resources | An account balance of no less than CNY 100 | Contact your business manager and submit an application |
| Change of the billing mode | Not supported | None |
| Maximum number of KEC instances that can be created per day | 100 | Contact your business manager and submit an application |
| Instance types that support system disk change | N2, N3, I3, S4, S3, C4, C3, SN3, and E1 | None |
| Instance types that support No Fees Upon Shutdown | N1, N2, N3, C4, S4, and SA1 | None |
| Billing modes that support No Fees Upon Shutdown | Pay-As-You-Go | None |
| Maximum number of KEC instances that can be created at a time | 50 | None |
| Retention period of a KEC instance in the recycle bin | 2 hours | None |
| KEC instance type | SSD EBS 3.0 volume | EHDD EBS volume | Local data disk |
|---|---|---|---|
| I/O Optimized I1 | Not supported | Not supported | Supported |
| Compute Optimized C1 | Not supported | Not supported | Supported |
| General Purpose N1 | Supported | Supported | Not supported |
| Basic E1 | Supported | Supported | Supported |
| ARM Computing AC1 | Not supported | Not supported | Supported |
| I/O Optimized I2 | Supported | Supported | Supported |
| Performance Guaranteed X2 | Supported | Supported | Supported |
| General Purpose N2 | Supported | Supported | Not supported |
| I/O Optimized I3 | Supported | Supported | Supported |
| Compute Optimized C3 | Supported | Supported | Supported |
| Compute Optimized C4 | Supported | Supported | Not supported |
| General Purpose N3 | Supported | Supported | Not supported |
| Standard S3 | Supported | Supported | Supported |
| Standard S4 | Supported | Supported | Not supported |
| Standard Network SN3 | Supported | Supported | Supported |
| Item | Description | Method of extending the limit |
|---|---|---|
| Number of system disks for each KEC instance | 1 | None |
| Capacity of each system disk (local disk) | 0 to 100 GB | Contact your business manager and submit an application |
| Capacity of each system disk (EBS 3.0 volume) | 0 to 500 GB | Contact your business manager and submit an application |
| Capacity of each data disk (local disk) | 0 to 4,000 TB (The upper limit depends on your purchased package.) | None |
| Capacity of each data disk (EBS volume) | 10 GB to 16 TB | None |
| Maximum number of data disks that can be attached to each KEC instance | One local disk (only during the creation of the KEC instance) and up to eight EBS volumes | Contact your business manager and submit an application |
For more information about the limits of EBS, see Limits.
| Item | Description | Method of extending the limit |
|---|---|---|
| Maximum number of manually created snapshots | Number of local disks × 7 + 6 | None |
| Maximum number of automatically created snapshots | Number of local disks × 7 | None |
| Automatic snapshot policy creation | Not supported | Contact your business manager and submit an application |
| Disk types that support automatic snapshot policies | Local disk | None |
| Maximum number of automatic snapshot policies that can be created in each region | 10 | Contact your business manager and submit an application |
| Maximum number of disks to which an automatic snapshot policy can be attached | 50 | Contact your business manager and submit an application |
| Item | Description | Method of extending the limit |
|---|---|---|
| Maximum number of custom images that each Kingsoft Cloud account can have across all regions | 50 | Contact your business manager and submit an application |
| Maximum number of users to which an image can be shared | 50 | Contact your business manager and submit an application |
| Regions that support image copying | CN North 1(Beijing), CN East 1(Shanghai), and CN South 1(Guangzhou) | Contact your business manager and submit an application |
| Item | Description | Method of extending the limit |
|---|---|---|
| Image types that support key pairs | Linux | None |
| Maximum number of key pairs that can be bound to each KEC instance | 10 | None |
| Item | Description | Method of extending the limit |
|---|---|---|
| Maximum number of KEC instances in each disaster tolerance group | 10 | Contact your business manager and submit an application |
| Types of KEC instances that can be added to disaster tolerance groups after the instances are created | N1, N2, and N3 | None |
| Item | Description | Method of extending the limit |
|---|---|---|
| Number of security groups in each VPC | 1 to 180 | None |
| Maximum number of inbound rules for each security group | 200 | None |
| Maximum number of outbound rules for each security group | 200 | None |
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