Kubernetes 1.36 restores a lost guarantee for database backups
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K8s change directly affects database backup reliability for cloud-native workloads.
Summary
Kubernetes 1.36 makes VolumeGroupSnapshot generally available, restoring the consistency group primitive lost when stateful workloads moved from enterprise storage to cloud-native. Multi-volume applications like databases with separate data and log PVCs previously faced silent backup corruption because per-PVC snapshots were not point-in-time consistent. The new API allows CSI drivers to freeze all related volumes simultaneously, eliminating the inconsistency window that only surfaced during disaster recovery.