Why Organizations Are Taking Another Look at Ceph in 2026

The object storage space has been unusually eventful recently. MinIO, one of the most widely deployed S3-compatible object storage projects, moved toward a commercial licensing model that changed the terms for many existing users. For teams that had built significant infrastructure on MinIO, this raised a practical question worth sitting with: how do you build long-term storage infrastructure when the licensing terms can change on you?

That question has pushed a lot of organizations to look more seriously at Ceph. And many of them are finding it’s a stronger choice than they expected, for reasons that have nothing to do with what MinIO did or didn’t do.

What the MinIO Licensing Shift Actually Means

MinIO is still a capable, high-performance object storage solution. The licensing change doesn’t make it technically worse. What it does illustrate is a risk that applies to any company-controlled open source project: a single company can change the terms, and there’s nothing users can do about it.

This isn’t a new pattern. When HashiCorp moved Terraform to the BSL license in 2023, a lot of teams had to do the same kind of re-evaluation. The open source ecosystem has seen this often enough that it has a name: open source bait-and-switch. Infrastructure teams are getting better at asking governance questions upfront rather than finding out the hard way later.

For teams currently running MinIO and weighing their options, the key questions are what migration actually involves and whether the destination is worth it. For most, Ceph is the most credible path forward.

Why Open Governance Is a Different Kind of Stability

Ceph is governed by the Ceph Foundation, a directed fund under the Linux Foundation. Members include IBM, Samsung, Western Digital, Intel, and SUSE. No single company controls the licensing or roadmap. Nobody can wake up one morning and decide to commercialize it.

That’s not a small thing when you’re building storage infrastructure with a multi-year horizon. The governance model is the reason Kubernetes, Linux, and OpenStack have stayed open despite years of commercial pressure that would have changed the trajectory of company-controlled projects. Ceph sits in the same category.

When you build petabyte-scale storage on Ceph, you’re not betting on a company’s continued commitment to open source. You’re building on a project that has structural protections baked in. For teams that have been burned by licensing changes before, that distinction is worth more than a benchmark advantage.

What Ceph Offers on Its Own Merits

The governance argument only gets you so far if the technology doesn’t hold up. Fortunately, Ceph has gotten considerably better over the last few years and the 2026 version of the project is worth evaluating on its own terms.

Ceph handles object, block, and file storage from a single cluster. Instead of running separate systems for S3 object storage, block volumes for VMs, and shared filesystems, you get all three from one deployment: RADOS Gateway for S3 and Swift compatible APIs, RADOS Block Device for block storage, and CephFS for shared file access. If your workloads need more than one of those, running a unified cluster is simpler than managing separate solutions.

The S3 API compatibility is solid enough that most applications written against AWS S3 work against Ceph’s RADOS Gateway with no code changes. Endpoints and credentials need updating. Application logic typically doesn’t. That’s what makes MinIO-to-Ceph migrations practical rather than a full rearchitecting project.

The scale of real-world Ceph deployments is also worth paying attention to. Bloomberg, CERN, DigitalOcean, and over 320 telecommunications projects run Ceph in production. CERN uses it to manage physics data from the Large Hadron Collider. These aren’t forgiving environments for a storage platform that doesn’t work well under pressure.

The all-NVMe Ceph performance profile has also improved substantially. If your mental model of Ceph performance is based on spinning disk clusters from a few years ago, the current NVMe-optimized numbers are in a different league.

The Reef End-of-Life Moment

There’s a specific reason 2026 is a good time to revisit your Ceph setup: Reef (v18) reached end of life on March 31, 2026.

If you’re still running Reef, you need to migrate to Tentacle (v20), which became the current stable release with v20.2.1 in April 2026. Version upgrades are a normal part of the Ceph lifecycle, but they’re also a natural moment to ask whether your current cluster setup, hosting arrangement, and storage configuration are still the right fit.

For teams that have been deferring operational work on a self-managed Ceph cluster, a major version upgrade is a reasonable trigger to ask whether managed hosting makes more sense going forward. The upgrade is work either way. The question is whether you want to keep owning that work.

Tentacle has improvements worth knowing about: better NVMe performance tuning, RGW bucket resharding that no longer requires pausing operations (which was a real headache for large object storage deployments), and continued development on the CLAY erasure code plugin for better storage efficiency on certain workload patterns.

What Migration from MinIO to Ceph Actually Looks Like

The technical side of moving from MinIO to Ceph is more straightforward than most people expect. The operational side deserves an honest look.

Because both systems use S3-compatible APIs, most application changes come down to updating endpoints and credentials. Tools like rclone handle the data transfer between S3-compatible endpoints and support resumable transfers for large datasets. You’re not rewriting application logic or dealing with proprietary API differences.

The harder part is operating Ceph itself. MinIO’s appeal was partly that it was simple to deploy and run. Ceph is more capable but also more complex. Cluster sizing, OSD configuration, CRUSH map design, and replication policies all require more expertise. For teams with dedicated infrastructure engineers, that’s manageable and the depth of control is worthwhile. For teams without that expertise in-house, self-managing Ceph is probably the wrong call.

Why Hosted Ceph Changes the Operational Equation

The operational complexity that keeps teams from adopting Ceph is exactly what hosted infrastructure takes off your plate.

OpenMetal’s Ceph storage clusters run on dedicated bare metal with Micron 7450 and 7500 MAX NVMe drives and dual 10 Gbps networking per server. The cluster arrives preconfigured and production-ready. Fixed-cost pricing means your storage bill doesn’t move based on object count or operation volume, which is a different model from both public cloud storage billing and the variable costs of running your own hardware.

For teams moving from MinIO, the S3 API compatibility makes the migration path to OpenMetal’s Ceph-backed object storage straightforward on the application side. And moving from self-managing MinIO to a hosted Ceph environment actually reduces operational burden rather than adding to it. OpenMetal manages the infrastructure layer. You manage what runs on top.

For teams already running Ceph and facing the Reef-to-Tentacle upgrade, OpenMetal handles version management, cluster health monitoring, and the day-to-day operational work. The upgrade happens without you having to own the process.

For a deeper technical comparison, the Ceph vs MinIO article covers the architectural differences in detail. If compliance and data security are part of your evaluation, the confidential cloud storage article covers how Ceph handles regulated workloads.

The object storage landscape is genuinely different in 2026 than it was two years ago. If you haven’t looked at Ceph seriously in a while, it’s worth another look.

Evaluating your object storage options? See OpenMetal’s Ceph storage clusters to understand what fixed-cost dedicated storage would look like for your scale.