Amazon EC2 Auto Scaling
API Reference (API Version 2011-01-01)

Ebs

Describes an Amazon EBS volume. Used in combination with BlockDeviceMapping.

Contents

DeleteOnTermination

Indicates whether the volume is deleted on instance termination. The default value is true.

Type: Boolean

Required: No

Encrypted

Specifies whether the volume should be encrypted. Encrypted EBS volumes must be attached to instances that support Amazon EBS encryption. Volumes that are created from encrypted snapshots are automatically encrypted. There is no way to create an encrypted volume from an unencrypted snapshot or an unencrypted volume from an encrypted snapshot. If your AMI uses encrypted volumes, you can only launch it on supported instance types. For more information, see Amazon EBS Encryption in the Amazon EC2 User Guide for Linux Instances.

Type: Boolean

Required: No

Iops

The number of I/O operations per second (IOPS) to provision for the volume. For more information, see Amazon EBS Volume Types in the Amazon EC2 User Guide for Linux Instances.

Constraint: Required when the volume type is io1. (Not used with standard, gp2, st1, or sc1 volumes.)

Type: Integer

Valid Range: Minimum value of 100. Maximum value of 20000.

Required: No

SnapshotId

The ID of the snapshot. This parameter is optional if you specify a volume size.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Pattern: [\u0020-\uD7FF\uE000-\uFFFD\uD800\uDC00-\uDBFF\uDFFF\r\n\t]*

Required: No

VolumeSize

The volume size, in GiB.

Constraints: 1-1,024 for standard, 4-16,384 for io1, 1-16,384 for gp2, and 500-16,384 for st1 and sc1. If you specify a snapshot, the volume size must be equal to or larger than the snapshot size.

Default: If you create a volume from a snapshot and you don't specify a volume size, the default is the snapshot size.

Note

At least one of VolumeSize or SnapshotId is required.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 16384.

Required: No

VolumeType

The volume type, which can be standard for Magnetic, io1 for Provisioned IOPS SSD, gp2 for General Purpose SSD, st1 for Throughput Optimized HDD, or sc1 for Cold HDD. For more information, see Amazon EBS Volume Types in the Amazon EC2 User Guide for Linux Instances.

Valid values: standard | io1 | gp2 | st1 | sc1

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Required: No

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following:

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