Editorial desk
CephClusterGuide Editorial
CephClusterGuide Editorial is the publishing identity for CephClusterGuide. It is a desk, not a person: no named author, no biography, no professional certifications.
Articles published under this byline are researched from primary sources — vendor and project documentation, published standards and specifications, research papers, and measurements published by whoever took them — drafted with AI assistance, and edited against those cited sources before publication. Nothing here is based on first-hand testing in a private lab, and any figure that appears is attributed to the source it came from.
Corrections go to hello@cephclusterguide.com. More detail is on the about page and the editorial disclosure.
Posts (7)
- hardware
Ceph Hardware Recommendations for Small Clusters
Ceph hardware recommendations for small clusters: CPU threads and RAM per OSD, PLP SSDs, 10 Gb/s networking, and why N100 boxes fall short.
- ceph
How to Add an OSD to Ceph Safely with cephadm
Add a Ceph OSD without wiping the wrong disk: verify health, inventory the device, dry-run an OSD spec, deploy it, and watch the rebalance.
- Storage Comparison
Ceph vs Gluster: Which to Choose for Your Cluster
Compare Ceph and GlusterFS by storage model, workload fit, hardware requirements, cluster size, and support outlook to choose the right platform.
- capacity-planning
Ceph Erasure Coding vs Replication: How to Choose
How erasure coding and replication differ in space amplification, failure tolerance and write cost, with a k+m overhead table and a rule for picking one.
- hardware
Ceph Minimum Hardware Requirements: Nodes, CPU, RAM, Network
Learn why 3 nodes is the Ceph minimum, how many CPU threads and how much RAM each OSD needs, and the drive and 10 Gb/s network requirements.
- operations
Ceph HEALTH_WARN: Diagnose and Clear Warnings
A triage order for Ceph HEALTH_WARN covering degraded placement groups, nearfull OSDs, missed deep scrubs, autoscaler alerts and monitor clock skew.
- data-placement
Ceph Pools, Placement Groups and CRUSH Rules Explained
Configure Ceph pool size, inspect PG autoscaler recommendations and change a pool's CRUSH rule, with failure-domain checks before and after changes.