User Guide

AWS CloudHSM Limits

By default, the following limits apply to your AWS CloudHSM resources. These limits apply per AWS Region and per AWS account. The HSM limit is cumulative. It is not per cluster. You can distribute your HSMs across your clusters in any manner you want.

Service Limits

Item Default Limit
Clusters 4
HSMs 6

System Limits

Item Default Limit
Number of users per HSM 1024
Maximum length of a user name 31 characters
Required password length 7 to 32 characters
Maximum number of concurrent applications 1024

To request an increase in the number of clusters or HSMs, use the service limit increase form in the AWS Support Center.