# EbsDeviceOptionsBase

Base block device options for an EBS volume.

- Source: [`aws-ec2/lib/volume.ts`](https://github.com/aws/aws-cdk/blob/v2.275.0/packages/aws-cdk-lib/aws-ec2/lib/volume.ts#L63)
- Type last changed: v2.265.0 · 13 Aug 2026

## Example

```ts
// The code below shows an example of how to instantiate this type.
// The values are placeholders you should change.
import * as cdk from 'aws-cdk-lib';
import { aws_ec2 as ec2 } from 'aws-cdk-lib';

declare const size: cdk.Size;
const ebsDeviceOptionsBase: ec2.EbsDeviceOptionsBase = {
  deleteOnTermination: false,
  iops: 123,
  throughput: 123,
  volumeInitializationRate: size,
  volumeType: ec2.EbsDeviceVolumeType.STANDARD,
};
```

## Properties

- `deleteOnTermination`: boolean — Indicates whether to delete the volume when the instance is terminated.

  **Default:** true for Amazon EC2 Auto Scaling, false otherwise (e.g. EBS)

- `iops`: number — The number of I/O operations per second (IOPS) to provision for the volume.

  **Default:** none, required for `EbsDeviceVolumeType.IO1`

  Must only be set for `volumeType`: `EbsDeviceVolumeType.IO1`

  The maximum ratio of IOPS to volume size (in GiB) is 50:1, so for 5,000 provisioned IOPS,
  you need at least 100 GiB storage on the volume.

- `throughput`: number — The throughput to provision for a `gp3` volume.

  **Default:** 125 MiB/s.

  Valid Range: Minimum value of 125. Maximum value of 2000.

  `gp3` volumes deliver a consistent baseline throughput performance of 125 MiB/s.
  You can provision additional throughput for an additional cost at a ratio of 0.25 MiB/s per provisioned IOPS.

- `volumeInitializationRate`: [Size](/cdk/api/v2/docs/aws-cdk-lib.Size.html) — The Amazon EBS Provisioned Rate for Volume Initialization, at which to download the snapshot blocks from Amazon S3 to the volume.

  **Default:** undefined - The volume initialization rate is not set.

  Valid range is between 100 and 300 MiB/s.
  This parameter is supported only for volumes created from snapshots.

- `volumeType`: [EbsDeviceVolumeType](/cdk/api/v2/docs/aws-cdk-lib.aws_ec2.EbsDeviceVolumeType.html) — The EBS volume type.

  **Default:** `EbsDeviceVolumeType.GENERAL_PURPOSE_SSD` or `EbsDeviceVolumeType.GENERAL_PURPOSE_SSD_GP3` if `@aws-cdk/aws-ec2:ebsDefaultGp3Volume` is enabled.