Aliyun ECS & VPC API products and business restrictions

　　 Aliyun ECS & VPC API products and business restrictions

Restricted Items	General User Limit description	Exception Application Method (Exception limit)
Creating financial constraints on ECS resources	Account balance greater than 100 yuan in cash	Work orders
Create user restrictions for ECS resources	User needs real name authentication
Scope of available areas for user-produced instances	1 Available Areas Online	Work orders for more
The range of available areas for users to produce disks	User can generate an instance of the available area and the user has an instance of the available area to go back to the set	No high match.
User default available by Quantity Instance specification (series I)	Ecs.t1.small (1 nuclear 1 G)	Work orders
Ecs.s1.small (1 nuclear 2 G)
Ecs.s1.medium (1 nuclear 4 G)
Ecs.s2.small (2 nuclear 2 G)
Ecs.s2.large (2 nuclear 4 G)
Ecs.s2.xlarge (2 nuclear 8 G)
Ecs.s3.medium (4 nuclear 4 G)
Ecs.s3.large (4 nuclear 8 G)
Ecs.m1.medium (4 nuclear G)
User default available by volume instance specification (series II)	Ecs.n1.tiny (1 nuclear 1 G)	Work orders
Ecs.n1.small (1 nuclear 2 G)
Ecs.n1.medium (2 nuclear 4 G)
Ecs.n1.large (4 nuclear 8 G)
Ecs.n2.small (1 nuclear 4 G)
Ecs.n2.medium (4 nuclear 8 G)
Ecs.n2.large (4 nuclear G)
Ecs.e3.small (1 nuclear 8 G)
Ecs.e3.medium (2 nuclear G)
User default per-amount instance quotas	50	Work orders for more. According to the user membership level, the maximum application can be: L0 Users: 200 L1 Users: 300 L2 Users: 500 L3 Users: 1000 L4 Users: 2000 At the same time, you need to recharge enough money in advance to ensure that you can support the length of time you need to use. If the review found that there is a potential for the lack of fees or the history of the fee will affect your next application.
Number of Single instance disks	API 5 Block (contains system disk)	No high match.
Number of snapshots	Number of Disk Holdings * 6 + 6	No high match.
Single-Block ordinary cloud disk capacity	5gb-2000gb	No high match.
List of available system mirrors for the user	List of mirrors sold on official website (currently 30)	Universal users can not be changed, other work orders to add other mirrors
Number of Mirrors	30	Work orders
Optional range of public network bandwidth	Max 200Mbps	No high match.
Optional range of public net out bandwidth	Max 100Mbps	Work order, maximum 200Mbps
Optional range of public net out flow	Max 100Mbps	Work order, maximum 200Mbps
Number of configurable instances for a single security group	1000	No high match.
Number of authorization rules for a single security group	100	No high match.
User has quotas for security groups	100	Work orders for more
Single instance maximum number of security groups	5	No high match.
Limitations of mirroring and instance specifications	Instances of memory above 4G and 4G cannot use 32-bit mirrors	No exceptions.
Whether the local disk instance can add new disks	Not allowed	No exceptions.
Whether you have a local disk instance that can be matched	Allow change of bandwidth	No exceptions, but can be mounted using a cloud disk
The relationship between the system disk and the data disk	If the system disk is a cloud disk, the data disk must be a cloud disk	No high match.
Total volume of paid cloud discs can be purchased	ECS Instance Quota * 5	Work orders
Ordinary cloud disk capacity	5gb-2000gb	No high match.
Create user restrictions on volume paid cloud disk	Users need real name certification (buy only limited)
System disk mount point range	/dev/xvda	No high match.
Data disk mount point range	/DEV/XVD[B-Z]	No high match.
Number of EIP for a single user	20 A	Work orders
Optional bandwidth range for EIP	0-200mbps	Work list, Max 400Mbps
Number of VPC for a single user	2 A	Work orders
VPC Optional CIDR Range	192.168.0.0/16 and 172.16.0.0/12, 10.0.0.0/8, and their subnets.	Work orders
Number of VSwitch of a single VPC	24 A	No exceptions.
Number of routeentry entries for routetable	48 article	Work orders
Single-block SSD cloud disk capacity	20GB ~ 32768GB	No high match.
Single-block high efficiency cloud disk capacity	20GB ~ 32768GB	No high match.
Single-block local SSD disk capacity	5GB ~ 800GB	No high match.
Single instance local SSD disk Total capacity	1024GB	No high match.