When a HSM instance expires, the HSM instance is retained for seven days. You must renew the instance within the seven-day period. After the renewal is completed, you can continue to use the instance and the data contained within the instance.
If you do not renew the instance within seven days after the instance expires, the HSM instance will be deleted permanently. If you want to use HSM again in the future, you will need to purchase a new HSM instance.