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Limits

Last updated:2021-08-03 18:56:33

This document describes the limits on using KEC and related services.

KEC instance

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

Data disks supported by KEC instances

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

EBS volume

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.

Snapshot

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

Image

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

Key pair

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

Disaster tolerance group

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

Security group

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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