This topic describes the limits of Alibaba Cloud Edge Node Service (ENS) and how to remove the limits.
Images
Feature | Limit | How to remove the limit |
Maximum number of custom images per user | 10 | Submit a ticket or contact your account manager. |
Create a custom image from an instance | This feature is available only for the following instance families: x86-based computing instance, x86-based physical machine, x86-based bare metal instance, ARM-based computing instance, heterogeneous VM, and heterogeneous bare metal instance. | None. |
Create a custom image by using an image builder | This feature is available only for x86-based computing instance families. | None. |
Delete a custom image | The image is not used by any instances. | None. |
Instances
Feature | Limit | How to remove the limit |
Create instances | The real-name verification is complete. | None. |
Maximum number of network interface controllers (NICs) on an instance | 16 | None. |
Maximum number of instances that you can purchase at a time | 100 | None. |
Default maximum performance of an instance | For more information, see Instance overview. | Submit a ticket or contact your account manager. |
Reset the system disk | This feature is available only for x86-based computing instance families. | None. |
Reset an instance | This feature is available only for the following instance families: x86-based computing instance, x86-based physical machine, x86-based bare metal instance, ARM-based computing instance, heterogeneous VM, and heterogeneous bare metal instance. | None. |
Support public NICs | This feature is available only for the following instance families: x86-based computing instance, x86-based physical machine, and ARM-based computing instance. | None. |
Modify the hostname of an instance | This feature is available only for the following instance families: x86-based computing instance and heterogeneous VM. | None. |
Support custom data | Linux: This feature is available only for the following instance families: x86-based computing instance, ARM-based computing instance, x86-based physical machine, x86-based bare metal instance, and heterogeneous bare metal instance. Windows: This feature is available only for heterogeneous VM instance families. | None. |
Support Virtual Network Computing (VNC) connections | This feature is available only for the following instance families: x86-based computing instance, x86-based physx86-based bare metal instance, ARM-based computing instance, and heterogeneous bare metal instance. Some x86 x86-based physical machine and bare metal instance models do not support VNC connections. | None. |
Change bandwidth | This feature is available only for x86-based computing instance families. | None. |
Unsubscribe from or release an instance | Disks that are created with the instance do not have snapshots. | None. |
cloud-init | This feature is not available for edge nodes on which cloud-init has been upgraded. | Submit a ticket or contact your manager. |
Public bandwidth
Feature | Limit | How to remove the limit |
Peak pay-as-you-go bandwidth of a node | 5 Gbps | Submit a ticket or contact your account manager. |
Peak bandwidth of an instance | For more information, see Instance overview. | Submit a ticket or contact your manager. |
SSH key pairs
Feature | Limit | How to remove the limit |
Images that support SSH key pairs | Only Linux images. | None. |
Instances that support SSH key pairs | This feature is available only for the following instance families: x86-based computing instance, heterogeneous VM, and ARM-based computing instance. | None. |
Delete a key pair | The key pair is not used by any instances. | None. |
Disks
Feature | Limit | How to remove the limit |
Maximum number of system disks on an instance | 1 | None. |
Maximum number of data disks on an instance | 15 | None. |
Capacity of a system disk | 20 GB~25 TB | None. |
Capacity of an ultra disk | 20 GB~32 TB | None. |
Capacity of an all-flash disk | 20 GB~25 TB | None. |
Expand disks | This feature is available only for separately purchased pay-as-you-go disks. | None. |
Security groups
Feature | Limit | How to remove the limit |
Support security groups | This feature is available only for i the following instance families: x86-based computing instance and ARM-based computing instance. | None. |
Manage snapshots
Feature | Limit | How to remove the limit |
Create a snapshot | This feature is available only for instances that use cloud disks. | None. |
ELB
Feature | Limit | How to remove the limit |
Maximum number of connections per instance | 500,000 | None. |
EIP
Feature | Limit | How to remove the limit |
Maximum number of elastic IP addresses (EIPs) per user | 10 | Submit a ticket or your sales manager. |
Public bandwidth of a single EIP | 10 Gbps | None. |
NAT Gateway
Feature | Limit | How to remove the limit |
Maximum number of NAT gateways per user per node | 3 | Submit a ticket or contact your manager. |
Maximum number of Source Network Address Translation (SNAT) rules per instance | 256 | None. |
Maximum number of Destination Network Address Translation (DNAT) rules per instance | 200 | None. |
VPC
Feature | Limit | How to remove the limit |
Maximum number of virtual private clouds (VPCs) per user per node | 2 | Submit a ticket or contact your manager. |
Maximum number of vSwitches per user per node | 3 | Submit a ticket or contact your manager. |
Network ACL
Feature | Limit | How to remove the limit |
Number of rules for a single instance | 400 | None. |
NAS Collaborative Storage
Feature | Limit | How to remove the limit |
Maximum number of file systems per user per node | 2 | None. |
Maximum number of mount points per file system | 1 | None. |