Values.CloudHsmClusterInUseExceptionSourceThe request was rejected because the specified CloudHSM cluster is already associated with an CloudHSM key store in the account, or it shares a backup history with an CloudHSM key store in the account. Each CloudHSM key store in the account must be associated with a different CloudHSM cluster. CloudHSM clusters that share a backup history have the same cluster certificate. To view the cluster certificate of an CloudHSM cluster, use the DescribeClusters operation.