Backup

The nfs-provisioner's root-mount volume was backing up the entire shared NFS export as one 33.4GB blob every night — redundant because every app's PVC was already backed up separately. The investigation almost went wrong when the first hypothesis pointed at the wrong disk.

A hands-on comparison of the 5 best NAS devices for home backup in 2026 — covering Synology, QNAP, Terramaster, and UGREEN for personal and homelab use.

A daily offsite backup cron job had a 99% failure rate for over a month. It looked like a credential or network problem. It was neither - Google Drive's API throttles hard on exactly the storage format Proxmox Backup Server uses, and a 24-hour cron window was never going to be enough.

DISASTER-RECOVERY.md documented the Proxmox Backup Server restore procedure in detail. It had never been executed end-to-end. Running it for the first time - against a scratch VM, alongside the still-running original - found a network conflict the documentation never mentioned.