To create the volumes on the regions that contain the nodes, you need to log in to the AWS console and go to
Compute
EC2
Volumes
Create Volume
.
Select the volume size based on the requirements.
For example, create two volumes of 50 GB for the Informatica nodes. For the database, create a volume of 5 GB disk space. If you need to allocate more space, you can allocate additional space when you create the volume.