Cluster Setup Page AMI: Region: US West (Oregon) Europe (Ireland) US East (N. Virginia) Cluster Name: Private Key:   what is this? X. 509 Certificate:   what is this? Cluster Size: Micro Instance Small Instance Medium Instance Large Instance XLarge Instance High-Memory XL Instance High-Memory Double XL Instance High-Memory Quadruple XL Instance High-CPU Medium Instance High-CPU Extra Large Instance Count: What are these types? Shared File Systems: S3  NFS S3 Parameters Access Key ID:   what is this? Secret Access Key:   what is this? Mount Point: Temp Directory: NFS Parameters Mount Point: location of MountPoint: on root device  New Volume  existing Volume New Volume Size:  GB Volume ID:   Key Pair: User Data: password: 123456 access_key: secret_key: