February 22, 2026
Every database HA decision starts with two numbers: RPO (Recovery Point Objective – how much data you can afford to lose) and RTO (Recovery Time Objective – how long the database can be unavailable). These numbers dictate the pattern, and each pattern carries specific operational tradeoffs.
RPO = 0 means zero data loss. Every committed transaction must survive a failure. This requires synchronous replication, which adds latency to every write.
February 22, 2026
Multi-cloud is one of the most oversold strategies in infrastructure. Vendors, consultants, and conference speakers promote it as the default approach, but the reality is that most organizations are better served by a single cloud provider used well. This framework helps you determine whether multi-cloud is actually worth the cost for your situation.
Start with single-cloud unless you have a specific, concrete reason to go multi-cloud. Here is why.
February 22, 2026
Velero backs up Kubernetes resources and persistent volume data to object storage. It handles scheduled backups, on-demand snapshots, and restores to the same or a different cluster. It is the standard tool for Kubernetes disaster recovery.
Velero captures two things: Kubernetes API objects (stored as JSON) and persistent volume data (via cloud volume snapshots or file-level backup with Kopia).
You need an object storage bucket (S3, GCS, Azure Blob, or MinIO) and write credentials.
February 21, 2026
Kubernetes clusters contain two fundamentally different types of state: cluster state (the Kubernetes objects themselves – Deployments, Services, ConfigMaps, Secrets, CRDs) and application data (the contents of Persistent Volumes). A complete backup strategy must address both. Most backup failures happen because teams back up one but not the other, or because they never test the restore process.
Before choosing tools, inventory what your cluster contains: