fix(ec2): max iops value for io2 EBS volume is wrong (#28695)

The max value of `iops` for `io2` EBS volume is wrong. And I fixed the reference URL.

- 64000 -> 256000

https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-volume.html#cfn-ec2-volume-iops

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

packages/aws-cdk-lib/aws-ec2/lib/volume.ts

@@ -344,7 +344,7 @@ export interface VolumeProps {
 
   /**
    * The size of the volume, in GiBs. You must specify either a snapshot ID or a volume size.
-   * See https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-ebs-volume.html
+   * See https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-volume.html
    * for details on the allowable size for each type of volume.
    *
    * @default If you're creating the volume from a snapshot and don't specify a volume size, the default is the snapshot size.
@@ -427,7 +427,7 @@ export interface VolumeProps {
   /**
    * The number of I/O operations per second (IOPS) to provision for the volume. The maximum ratio is 50 IOPS/GiB for PROVISIONED_IOPS_SSD,
    * and 500 IOPS/GiB for both PROVISIONED_IOPS_SSD_IO2 and GENERAL_PURPOSE_SSD_GP3.
-   * See https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-ebs-volume.html
+   * See https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-volume.html
    * for more information.
    *
    * This parameter is valid only for PROVISIONED_IOPS_SSD, PROVISIONED_IOPS_SSD_IO2 and GENERAL_PURPOSE_SSD_GP3 volumes.
@@ -446,7 +446,7 @@ export interface VolumeProps {
   /**
    * The throughput that the volume supports, in MiB/s
    * Takes a minimum of 125 and maximum of 1000.
-   * @see https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-ebs-volume.html#cfn-ec2-ebs-volume-throughput
+   * @see https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-volume.html#cfn-ec2-volume-throughput
    * @default - 125 MiB/s. Only valid on gp3 volumes.
    */
   readonly throughput?: number;
@@ -691,11 +691,11 @@ export class Volume extends VolumeBase {
         );
       }
       // Enforce minimum & maximum IOPS:
-      // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-ebs-volume.html
+      // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-volume.html
       const iopsRanges: { [key: string]: { Min: number, Max: number } } = {};
       iopsRanges[EbsDeviceVolumeType.GENERAL_PURPOSE_SSD_GP3] = { Min: 3000, Max: 16000 };
       iopsRanges[EbsDeviceVolumeType.PROVISIONED_IOPS_SSD] = { Min: 100, Max: 64000 };
-      iopsRanges[EbsDeviceVolumeType.PROVISIONED_IOPS_SSD_IO2] = { Min: 100, Max: 64000 };
+      iopsRanges[EbsDeviceVolumeType.PROVISIONED_IOPS_SSD_IO2] = { Min: 100, Max: 256000 };
       const { Min, Max } = iopsRanges[volumeType];
       if (props.iops < Min || props.iops > Max) {
         throw new Error(`\`${volumeType}\` volumes iops must be between ${Min} and ${Max}.`);
@@ -739,7 +739,7 @@ export class Volume extends VolumeBase {
     if (props.size) {
       const size = props.size.toGibibytes({ rounding: SizeRoundingBehavior.FAIL });
       // Enforce minimum & maximum volume size:
-      // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-properties-ec2-ebs-volume.html
+      // https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-ec2-volume.html
       const sizeRanges: { [key: string]: { Min: number, Max: number } } = {};
       sizeRanges[EbsDeviceVolumeType.GENERAL_PURPOSE_SSD] = { Min: 1, Max: 16384 };
       sizeRanges[EbsDeviceVolumeType.GENERAL_PURPOSE_SSD_GP3] = { Min: 1, Max: 16384 };

packages/aws-cdk-lib/aws-ec2/test/volume.test.ts

@@ -1279,7 +1279,7 @@ describe('volume', () => {
     for (const testData of [
       [EbsDeviceVolumeType.GENERAL_PURPOSE_SSD_GP3, 3000, 16000],
       [EbsDeviceVolumeType.PROVISIONED_IOPS_SSD, 100, 64000],
-      [EbsDeviceVolumeType.PROVISIONED_IOPS_SSD_IO2, 100, 64000],
+      [EbsDeviceVolumeType.PROVISIONED_IOPS_SSD_IO2, 100, 256000],
     ]) {
       const volumeType = testData[0] as EbsDeviceVolumeType;
       const min = testData[1] as number;