Upgrade default storage class for EKS
This guide walks you through the steps to upgrade the default EBS volumes for your Amazon EKS clusters from
gp2 to the superior
- An Argonaut account
- Have art CLI configured
- Active EKS clusters (v1.17 or newer)
- The corresponding version of kubectl (with authorization to install EBS CSI-related objects)
The default Storage Class (SC) defined for EKS clusters is of
gp2 type. These aren’t the most efficient in terms of cost and performance. We recommend you upgrade to
gp3. Here’s a comparison of the two.
gp3 provides higher IOPS and throughput at a 20% lower cost per GB.
Accessing your cluster
Before we can interact with your EKS cluster, the first step is to set up local terminal access to your cluster using
Follow the steps in this guide to obtain access to your cluster. Once done, you should be able to run the following
Migrating from gp2 to gp3
This involves two steps.
Removing the following annotation from the
gp2storage class, which will already be present on the cluster.
This can be removed using the following kubectl command.
kubectl annotate sc gp2 storageclass.kubernetes.io/is-default-class: "false"
Paste the following code in a
.yamlfile and apply it to the cluster. This sets the default storage class as
Now run the below command to apply the change.
$ kubectl apply -f gp3-def-sc.yaml
You’ll get a response:
Once this is done, you can set
storageClass: gp3 in your helm files.
Any new stateful apps that you spin up will make use of the
gp3 storageclass version.
Argonaut will soon make gp3 the default for all new EKS clusters.