Use CreateFileSystem with an AWS SDK or CLI

To create an encrypted file system

The following create-file-system example creates an encrypted file system using the default CMK. It also adds the tag Name=my-file-system.

aws efs create-file-system \
    --performance-mode generalPurpose \
    --throughput-mode bursting \
    --encrypted \
    --tags Key=Name,Value=my-file-system

Output:

{
    "OwnerId": "123456789012",
    "CreationToken": "console-d7f56c5f-e433-41ca-8307-9d9c0example",
    "FileSystemId": "fs-c7a0456e",
    "FileSystemArn": "arn:aws:elasticfilesystem:us-west-2:123456789012:file-system/fs-48499b4d",
    "CreationTime": 1595286880.0,
    "LifeCycleState": "creating",
    "Name": "my-file-system",
    "NumberOfMountTargets": 0,
    "SizeInBytes": {
        "Value": 0,
        "ValueInIA": 0,
        "ValueInStandard": 0
    },
    "PerformanceMode": "generalPurpose",
    "Encrypted": true,
    "KmsKeyId": "arn:aws:kms:us-west-2:123456789012:key/a59b3472-e62c-42e4-adcf-30d92example",
    "ThroughputMode": "bursting",
    "Tags": [
        {
            "Key": "Name",
            "Value": "my-file-system"
        }
    ]
}

For more information, see Creating Amazon EFS file systems in the Amazon Elastic File System User Guide.

Example 1: Creates a new, empty file system. The token used to ensure idempotent creation will be generated automatically and can be accessed from the CreationToken member of the returned object.

New-EFSFileSystem

Output:

CreationTime         : 5/26/2015 4:02:38 PM
CreationToken        : 1a2bff54-85e0-4747-bd95-7bc172c4f555
FileSystemId         : fs-1a2b3c4d
LifeCycleState       : creating
Name                 :
NumberOfMountTargets : 0
OwnerId              : 123456789012
SizeInBytes          : Amazon.ElasticFileSystem.Model.FileSystemSize

Example 2: Creates a new, empty file system using a custom token to ensure idempotent creation.

New-EFSFileSystem -CreationToken "MyUniqueToken"