Throughput parameter doesn't work

[aiell0]

/kind bug

What happened?
Throughput parameter on StorageClass not being implemented for dynamic provisioning.

What you expected to happen?
I was using a gp3 EBS type and specified throughput as 250Mb/s, and it came up as 125Mb/s.

How to reproduce it (as minimally and precisely as possible)?
Define a StorageClass as follows:

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: somename
parameters:
  encrypted: "true"
  iops: "5000"
  kmsKeyId: "kmskeyId"
  throughput: "250"
provisioner: ebs.csi.aws.com
reclaimPolicy: Delete
volumeBindingMode: WaitForFirstConsumer

Anything else we need to know?:

Environment

• Kubernetes version (use kubectl version):

Client Version: v1.24.10-eks-48e63af
Kustomize Version: v4.5.4
Server Version: v1.25.8-eks-ec5523e

• Driver version: v1.18.0

[rdpsin]

Thanks for reporting this. We will fix it. In the meantime, you could use a workaround by specifying the volume type in the parameters.

type: "gp3"

That will provision the correct throughput.