Upgrade volume performance without downtime: VolumeAttributesClass on OpenShift

· Red Hat · Feb. 3, 2026, 2:35 p.m.
openshift cloud-storage Kubernetes Storage Management
Summary
This blog post describes the new VolumeAttributesClass (VAC) feature in OpenShift 4.21, which allows developers to modify persistent volume performance attributes without downtime. Traditionally, such upgrades required disruptive processes like tearing down volumes or complex migrations. VAC enhances flexibility by permitting live performance modifications, which can significantly improve operational efficiency and adaptability in cloud environments.
Read full post on developers.redhat.com →
AUTHOR
Advertise
Sponsor diff.blog
Put your product in front of developers who read and write about their craft. One exclusive sponsor at a time.
Become a sponsor →
BLOG POST FEATURED ON

Placeholder image
r/jboss

1 points

Add this plugin to your blog