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/AWS1/CL_ASCEBS

Describes information used to set up an Amazon EBS volume specified in a block device mapping.

CONSTRUCTOR

IMPORTING

Optional arguments:

iv_snapshotid TYPE /AWS1/ASCXMLSTRINGMAXLEN255 /AWS1/ASCXMLSTRINGMAXLEN255

The snapshot ID of the volume to use.

You must specify either a VolumeSize or a SnapshotId.

iv_volumesize TYPE /AWS1/ASCBLOCKDEVEBSVOLUMESIZE /AWS1/ASCBLOCKDEVEBSVOLUMESIZE

The volume size, in GiBs. The following are the supported volumes sizes for each volume type:

  • gp2 and gp3: 1-16,384

  • io1: 4-16,384

  • st1 and sc1: 125-16,384

  • standard: 1-1,024

You must specify either a SnapshotId or a VolumeSize. If you specify both SnapshotId and VolumeSize, the volume size must be equal or greater than the size of the snapshot.

iv_volumetype TYPE /AWS1/ASCBLOCKDEVEBSVOLUMETYPE /AWS1/ASCBLOCKDEVEBSVOLUMETYPE

The volume type. For more information, see Amazon EBS volume types in the Amazon EBS User Guide.

Valid values: standard | io1 | gp2 | st1 | sc1 | gp3

iv_deleteontermination TYPE /AWS1/ASCBLKDEVEBSDELONTERMI00 /AWS1/ASCBLKDEVEBSDELONTERMI00

Indicates whether the volume is deleted on instance termination. For Amazon EC2 Auto Scaling, the default value is true.

iv_iops TYPE /AWS1/ASCBLOCKDEVICEEBSIOPS /AWS1/ASCBLOCKDEVICEEBSIOPS

The number of input/output (I/O) operations per second (IOPS) to provision for the volume. For gp3 and io1 volumes, this represents the number of IOPS that are provisioned for the volume. For gp2 volumes, this represents the baseline performance of the volume and the rate at which the volume accumulates I/O credits for bursting.

The following are the supported values for each volume type:

  • gp3: 3,000-16,000 IOPS

  • io1: 100-64,000 IOPS

For io1 volumes, we guarantee 64,000 IOPS only for Instances built on the Amazon Web Services Nitro System. Other instance families guarantee performance up to 32,000 IOPS.

Iops is supported when the volume type is gp3 or io1 and required only when the volume type is io1. (Not used with standard, gp2, st1, or sc1 volumes.)

iv_encrypted TYPE /AWS1/ASCBLOCKDEVICEEBSENC /AWS1/ASCBLOCKDEVICEEBSENC

Specifies whether the volume should be encrypted. Encrypted EBS volumes can only be attached to instances that support Amazon EBS encryption. For more information, see Requirements for Amazon EBS encryption in the Amazon EBS User Guide. If your AMI uses encrypted volumes, you can also only launch it on supported instance types.

If you are creating a volume from a snapshot, you cannot create an unencrypted volume from an encrypted snapshot. Also, you cannot specify a KMS key ID when using a launch configuration.

If you enable encryption by default, the EBS volumes that you create are always encrypted, either using the Amazon Web Services managed KMS key or a customer-managed KMS key, regardless of whether the snapshot was encrypted.

For more information, see Use Amazon Web Services KMS keys to encrypt Amazon EBS volumes in the Amazon EC2 Auto Scaling User Guide.

iv_throughput TYPE /AWS1/ASCBLOCKDEVICEEBSTHRUPUT /AWS1/ASCBLOCKDEVICEEBSTHRUPUT

The throughput (MiBps) to provision for a gp3 volume.

Queryable Attributes

SnapshotId

The snapshot ID of the volume to use.

You must specify either a VolumeSize or a SnapshotId.

Accessible with the following methods

Method Description
GET_SNAPSHOTID() Getter for SNAPSHOTID, with configurable default
ASK_SNAPSHOTID() Getter for SNAPSHOTID w/ exceptions if field has no value
HAS_SNAPSHOTID() Determine if SNAPSHOTID has a value

VolumeSize

The volume size, in GiBs. The following are the supported volumes sizes for each volume type:

  • gp2 and gp3: 1-16,384

  • io1: 4-16,384

  • st1 and sc1: 125-16,384

  • standard: 1-1,024

You must specify either a SnapshotId or a VolumeSize. If you specify both SnapshotId and VolumeSize, the volume size must be equal or greater than the size of the snapshot.

Accessible with the following methods

Method Description
GET_VOLUMESIZE() Getter for VOLUMESIZE, with configurable default
ASK_VOLUMESIZE() Getter for VOLUMESIZE w/ exceptions if field has no value
HAS_VOLUMESIZE() Determine if VOLUMESIZE has a value

VolumeType

The volume type. For more information, see Amazon EBS volume types in the Amazon EBS User Guide.

Valid values: standard | io1 | gp2 | st1 | sc1 | gp3

Accessible with the following methods

Method Description
GET_VOLUMETYPE() Getter for VOLUMETYPE, with configurable default
ASK_VOLUMETYPE() Getter for VOLUMETYPE w/ exceptions if field has no value
HAS_VOLUMETYPE() Determine if VOLUMETYPE has a value

DeleteOnTermination

Indicates whether the volume is deleted on instance termination. For Amazon EC2 Auto Scaling, the default value is true.

Accessible with the following methods

Method Description
GET_DELETEONTERMINATION() Getter for DELETEONTERMINATION, with configurable default
ASK_DELETEONTERMINATION() Getter for DELETEONTERMINATION w/ exceptions if field has no
HAS_DELETEONTERMINATION() Determine if DELETEONTERMINATION has a value

Iops

The number of input/output (I/O) operations per second (IOPS) to provision for the volume. For gp3 and io1 volumes, this represents the number of IOPS that are provisioned for the volume. For gp2 volumes, this represents the baseline performance of the volume and the rate at which the volume accumulates I/O credits for bursting.

The following are the supported values for each volume type:

  • gp3: 3,000-16,000 IOPS

  • io1: 100-64,000 IOPS

For io1 volumes, we guarantee 64,000 IOPS only for Instances built on the Amazon Web Services Nitro System. Other instance families guarantee performance up to 32,000 IOPS.

Iops is supported when the volume type is gp3 or io1 and required only when the volume type is io1. (Not used with standard, gp2, st1, or sc1 volumes.)

Accessible with the following methods

Method Description
GET_IOPS() Getter for IOPS, with configurable default
ASK_IOPS() Getter for IOPS w/ exceptions if field has no value
HAS_IOPS() Determine if IOPS has a value

Encrypted

Specifies whether the volume should be encrypted. Encrypted EBS volumes can only be attached to instances that support Amazon EBS encryption. For more information, see Requirements for Amazon EBS encryption in the Amazon EBS User Guide. If your AMI uses encrypted volumes, you can also only launch it on supported instance types.

If you are creating a volume from a snapshot, you cannot create an unencrypted volume from an encrypted snapshot. Also, you cannot specify a KMS key ID when using a launch configuration.

If you enable encryption by default, the EBS volumes that you create are always encrypted, either using the Amazon Web Services managed KMS key or a customer-managed KMS key, regardless of whether the snapshot was encrypted.

For more information, see Use Amazon Web Services KMS keys to encrypt Amazon EBS volumes in the Amazon EC2 Auto Scaling User Guide.

Accessible with the following methods

Method Description
GET_ENCRYPTED() Getter for ENCRYPTED, with configurable default
ASK_ENCRYPTED() Getter for ENCRYPTED w/ exceptions if field has no value
HAS_ENCRYPTED() Determine if ENCRYPTED has a value

Throughput

The throughput (MiBps) to provision for a gp3 volume.

Accessible with the following methods

Method Description
GET_THROUGHPUT() Getter for THROUGHPUT, with configurable default
ASK_THROUGHPUT() Getter for THROUGHPUT w/ exceptions if field has no value
HAS_THROUGHPUT() Determine if THROUGHPUT has a value