# Service limits
<a name="service-limits"></a>

See the following checks for the service limits (also known as quotas) category.

All checks in this category have the following descriptions:

**Alert Criteria**  
+ Yellow: 80% of limit reached.
+ Red: 100% of limit reached.
+ Blue: Trusted Advisor was unable to retrieve utilization or limits in one or more Amazon Web Services Regions.

**Recommended Action**  
If you expect to exceed a service limit, request an increase directly from the [Service Quotas](https://console.amazonaws.cn/servicequotas) console. If Service Quotas doesn’t support your service yet, you can open a support case in [Support Center](https://console.amazonaws.cn/support/home?region=us-east-1#/case/create?issueType=service-limit-increase&type=service_limit_increase).

**Report columns**  
+ Status
+ Service
+ Region
+ Limit Amount
+ Current Usage

**Note**  
Values are based on a snapshot, so your current usage might differ. Quota and usage data can take up to 24 hours to reflect any changes. In cases where quotas have been recently increased, you might temporarily see utilization that exceeds the quota.

**Contents**
+ [DynamoDB Read Capacity](#dynamo-db-read-capacity)
+ [DynamoDB Write Capacity](#dynamo-db-write-capacity)
+ [EBS Active Snapshots](#ebs-active-snapshots)
+ [EBS General Purpose SSD (gp2) Volume Storage](#ebs-general-purpose-ssd-gp2-volume-storage)
+ [EBS General Purpose SSD (gp3) Volume Storage](#ebs-general-purpose-ssd-gp3-volume-storage)
+ [EBS Magnetic (standard) Volume Storage](#ebs-magnetic-standard-volume-storage)
+ [EBS Provisioned IOPS SSD (io1) Volume Aggregate IOPS](#ebs-provisioned-iops-ssd-volume-aggregate-iops)
+ [EBS Provisioned IOPS SSD (io1) Volume Storage](#ebs-provisioned-iops-ssd-io1-volume-storage)
+ [EC2 Reserved Instance Leases](#ec2-reserved-instance-leases)
+ [EC2-VPC Elastic IP Address](#ec2-vpc-elastic-ip-address)
+ [ELB Classic Load Balancers](#elb-classic-load-balancers)
+ [VPC](#vpc-quota-check)
+ [VPC Internet Gateways](#vpc-internet-gateways)

## DynamoDB Read Capacity
<a name="dynamo-db-read-capacity"></a>

**Description**  
Checks for usage that is more than 80% of the DynamoDB provisioned throughput limit for reads per Amazon Web Services account.

**Check ID**  
`6gtQddfEw6`

**Additional Resources**  
[DynamoDB quotas](https://docs.amazonaws.cn//general/latest/gr/ddb.html)

## DynamoDB Write Capacity
<a name="dynamo-db-write-capacity"></a>

**Description**  
Checks for usage that is more than 80% of the DynamoDB provisioned throughput limit for writes per Amazon Web Services account.

**Check ID**  
`c5ftjdfkMr`

**Additional Resources**  
[DynamoDB quotas](https://docs.amazonaws.cn//general/latest/gr/ddb.html)

## EBS Active Snapshots
<a name="ebs-active-snapshots"></a>

**Description**  
Checks for usage that is more than 80% of the EBS active snapshots quota.

**Check ID**  
`eI7KK0l7J9`

**Additional Resources**  
[Amazon EBS limits](https://docs.amazonaws.cn/general/latest/gr/ebs-service.html)

## EBS General Purpose SSD (gp2) Volume Storage
<a name="ebs-general-purpose-ssd-gp2-volume-storage"></a>

**Description**  
Checks for usage that is more than 80% of the EBS General Purpose SSD (gp2) volume storage quota.

**Check ID**  
`dH7RR0l6J9`

**Additional Resources**  
[Amazon EBS limits](https://docs.amazonaws.cn/general/latest/gr/ebs-service.html)

## EBS General Purpose SSD (gp3) Volume Storage
<a name="ebs-general-purpose-ssd-gp3-volume-storage"></a>

**Description**  
Checks for usage that is more than 80% of the EBS General Purpose SSD (gp3) volume storage quota.

**Check ID**  
`dH7RR0l6J3`

**Additional Resources**  
[Amazon EBS limits](https://docs.amazonaws.cn/general/latest/gr/ebs-service.html)

## EBS Magnetic (standard) Volume Storage
<a name="ebs-magnetic-standard-volume-storage"></a>

**Description**  
Checks for usage that is more than 80% of the EBS Magnetic (standard) volume storage quota.

**Check ID**  
`cG7HH0l7J9`

**Additional Resources**  
[Amazon EBS limits](https://docs.amazonaws.cn/general/latest/gr/ebs-service.html)

## EBS Provisioned IOPS SSD (io1) Volume Aggregate IOPS
<a name="ebs-provisioned-iops-ssd-volume-aggregate-iops"></a>

**Description**  
Checks for usage that is more than 80% of the EBS Provisioned IOPS SSD (io1) volume aggregate IOPS quota.

**Check ID**  
`tV7YY0l7J9`

**Additional Resources**  
[Amazon EBS limits](https://docs.amazonaws.cn/general/latest/gr/ebs-service.html)

## EBS Provisioned IOPS SSD (io1) Volume Storage
<a name="ebs-provisioned-iops-ssd-io1-volume-storage"></a>

**Description**  
Checks for usage that is more than 80% of the EBS Provisioned IOPS SSD (io1) volume storage quota.

**Check ID**  
`gI7MM0l7J9`

**Additional Resources**  
[Amazon EBS limits](https://docs.amazonaws.cn/general/latest/gr/ebs-service.html)

## EC2 Reserved Instance Leases
<a name="ec2-reserved-instance-leases"></a>

**Description**  
Checks for usage that is more than 80% of the EC2 Reserved Instance leases quota.

**Check ID**  
`iH7PP0l7J9`

**Additional Resources**  
[Amazon EC2 quotas](https://docs.amazonaws.cn/AWSEC2/latest/UserGuide/ec2-resource-limits.html)

## EC2-VPC Elastic IP Address
<a name="ec2-vpc-elastic-ip-address"></a>

**Description**  
Checks for usage that is more than 80% of the EC2-VPC Elastic IP address quota.

**Check ID**  
`lN7RR0l7J9`

**Additional Resources**  
[VPC Elastic IP quotas](https://docs.amazonaws.cn/vpc/latest/userguide/amazon-vpc-limits.html#vpc-limits-eips)

## ELB Classic Load Balancers
<a name="elb-classic-load-balancers"></a>

**Description**  
Checks for usage that is more than 80% of the ELB Classic Load Balancers quota.

**Check ID**  
`iK7OO0l7J9`

**Additional Resources**  
[Elastic Load Balancing quotas](https://docs.amazonaws.cn/general/latest/gr/elb.html)

## VPC
<a name="vpc-quota-check"></a>

**Description**  
Checks for usage that is more than 80% of the VPC quota.

**Check ID**  
`jL7PP0l7J9`

**Additional Resources**  
[VPC quotas](https://docs.amazonaws.cn/vpc/latest/userguide/amazon-vpc-limits.html)

## VPC Internet Gateways
<a name="vpc-internet-gateways"></a>

**Description**  
Checks for usage that is more than 80% of the VPC Internet gateways quota.

**Check ID**  
`kM7QQ0l7J9`

**Additional Resources**  
[VPC quotas](https://docs.amazonaws.cn/vpc/latest/userguide/amazon-vpc-limits.html)