Storage

Storage is one of the three pillars holding up everything else in IT — alongside networking and compute. Get the storage layer wrong and nothing above it works reliably, no matter how good the rest of your stack is.

Guides in this section cover the technologies that actually matter when you're past "single disk on a desktop" — software RAID, ZFS, distributed filesystems like Ceph and GlusterFS, and the operational know-how that keeps data on disks and recoverable when something goes wrong.

Coming soon

First Storage guide is in the works. Subscribe on YouTube for the heads-up.

On the roadmap

• ZFS on Linux — datasets, snapshots, send/receive replication, the tunables you actually need
• Software RAID with mdadm — when it still makes sense, and when it doesn't
• Ceph cluster from scratch — three nodes, RBD for block storage, RGW for object, CephFS for shared files
• GlusterFS — when it's the right answer and when Ceph is
• Backup strategy with restic + offsite replication
• Storage for Kubernetes — Longhorn, OpenEBS, Rook-Ceph, and NFS-backed PVCs compared