Request an AWS KMS Quota Increase

AWS KMS resource quotas and request quotas are adjustable, except for the custom key store quota.

If you need to exceed a quota, you can request a quota increase in Service Quotas. Use the Service Quotas console or the RequestServiceQuotaIncrease operation. For details, see Requesting a quota increase in the Service Quotas User Guide. If Service Quotas for AWS KMS are not available in the AWS Region, please visit the AWS Support Center and create a case.

Using the Service Quotas console

To request an increase for an AWS KMS quota, you can use the Service Quotas console. For instructions, see Requesting a quota increase in the Service Quotas User Guide.

1. For service name, choose AWS Key Management Service (AWS KMS).

2. Choose the quota name of the quota you want to increase. Use the detailed information about the quota to confirm that you have chosen the quota you want to increase.

   You can search for the quota name in the Service Quotas console. There are several pages of AWS KMS quotas. You can also find the quota names and descriptions of AWS KMS quotas in the resource quota and request quota tables.

   For example, to request an increase to the quota for cryptographic operations on a symmetric CMK, choose Cryptographic operations (symmetric) request rate.

3. Choose Request quota increase.

Using the Service Quotas API

To request an increase in an AWS KMS quota, you can use the Service Quotas API. The RequestServiceQuotaIncrease operation, which submits the request, requires the quota code for the quota. So begin by getting the quota code.

1. Find the quota name of the quota you want to increase. You can find the quota names and descriptions of AWS KMS quotas in the resource quota and request quota tables.

2. To get the quota code for an AWS KMS quota, use the ListServiceQuotas operation.

   Set ServiceCode to kms.

   The response includes the QuotaName and QuotaCode for each quota.

   For example, to get only the quota information for the Cryptographic operations (RSA) request rate quota, use a command like the following one. It uses the query parameter in the AWS Command Line Interface (AWS CLI) to get only the quota with the specified quota name.

   $ aws service-quotas list-service-quotas \
           --service-code kms \
           --query 'Quotas[?QuotaName==`Cryptographic operations (RSA) request rate`]'
   
   {
       "Quotas": [
           {
               "ServiceCode": "kms",
               "ServiceName": "AWS Key Management Service (AWS KMS)",
               "QuotaArn": "arn:aws:servicequotas:us-east-2:111122223333:kms/L-2AC98190",
               "QuotaCode": "L-2AC98190",
               "QuotaName": "Cryptographic operations (RSA) request rate",
               "Value": 500,
               "Unit": "None",
               "Adjustable": true,
               "GlobalQuota": false
           }
       ]
   }

3. To request an increase for an AWS KMS quota, use the RequestServiceQuotaIncrease operation. To identify the quota, use the quota code.

   For example, the following command requests an increase in the Cryptographic operations (RSA) request rate quota to 700 requests per second. It uses the required quota code, L-2AC98190, to identify the quota.

   If the command completes successfully, the Status field displays the current status of the request. To get the updated status of the request, use the GetRequestedServiceQuotaChange, ListRequestedServiceQuotaChangeHistory or ListRequestedServiceQuotaChangeHistoryByQuota operations.

   $ aws service-quotas request-service-quota-increase \
           --service-code kms \
           --quota-code L-2AC98190 \
           --desired-value 700
   
   {
       "RequestedQuota": {
           "Id": "a12345",
           "ServiceCode": "kms",
           "ServiceName": "AWS Key Management Service (AWS KMS)",
           "QuotaCode": "L-2AC98190",
           "QuotaName": "Cryptographic operations (RSA) request rate",
           "DesiredValue": 700,
           "Status": "PENDING",
           "Created": 1580446904.067,
           "Requester": "{\"accountId\":\"111122223333\",\"callerArn\":\"arn:aws:iam::111122223333:root\"}",
           "QuotaArn": "arn:aws:servicequotas:us-east-2:111122223333:kms/L-2AC98190",
           "GlobalQuota": false,
           "Unit": "None"
       }
   }