#backups

4 posts

Sep 28, 2026 · 11 min read · kubernetes

Etcd Defragmentation: Reclaiming Space Without Cluster Disruption

Defragment etcd one member at a time, followers first, to reclaim space without losing quorum. Covers the script, leader checks, alerts and snapshot pruning.

etcdkubernetescontrol-planedefragmentationprometheusbackups

Jul 29, 2026 · 12 min read · infrastructure

Backing Up Qdrant Snapshots Correctly: From emptyDir to NFS Persistent Backups

Qdrant snapshots on emptyDir vanish on restart, and snapshots on the data PVC die with the disk. Here's the NFS-backed pattern that survives both.

qdrantkubernetesbackupsnfsstoragevector-databases

Jul 3, 2026 · 8 min read · homelab

Your Vector DB Snapshots Are Landing on the Same Disk That Will Fail

Qdrant snapshots default to the same volume as your data. One disk failure takes both, and even a surviving snapshot can fail restore with a 400 error.

qdrantvector-databasesbackupsdisaster-recoveryproxmoxai-agents

Jun 15, 2026 · 11 min read · homelab

Proxmox Backup Server: Incremental Backups for Your Whole Cluster

Setting up Proxmox Backup Server for incremental, deduplicated backups across a multi-node cluster, including the token auth and locking gotchas.

proxmoxbackupshomelabinfrastructuredisaster-recovery