Modify Amazon EBS volumes on Kubernetes with Volume Attributes Classes
Containers Blog
This article introduces the new VolumeAttributesClass (VAC) feature in Amazon EKS 1.31, which allows Kubernetes users to modify Amazon EBS volumes without application downtime.
- Enables online modifications of EBS volume characteristics like IOPS, throughput, and volume type
- Works with Amazon EBS CSI driver version 1.35.0 or later
- Supports three main workflows:
- Performance tuning of volumes
- Migrating to cost-effective gp3 volumes
- Modifying volume tags for backup automation
- Provides a declarative way to manage persistent volumes
- Allows cluster operators to create standard volume configuration classes for application teams
The feature simplifies volume management in Kubernetes by allowing dynamic modifications without requiring application downtime or manual migration.
The AWS News Feed is currently looking for gold sponsors. If you want to support the AWS community and reach a large audience of AWS professionals, consider sponsoring the AWS News Feed.
Related articles
Feb 17
2026
2026
Enhancing co-located Kubernetes Pod data access with Amazon EBS Node-Local volumes
Jan 15
2026
2026
Amazon EBS now supports up to four Elastic Volumes modifications in 24 hours
Jul 10
2026
2026
Amazon EC2 now supports using an EBS volume for Replace Root Volume
Nov 21
2025
2025
Introducing Automated Amazon EBS Volume Optimization in AWS Compute Optimizer
The AWS News Feed is currently looking for silver sponsors. If you want to support the AWS community and reach a large audience of AWS professionals, consider sponsoring the AWS News Feed.