Ceph
February 22, 2026
What it is
Ceph provides object (RADOS/S3), block (RBD), and file (CephFS) storage in a distributed, self-healing cluster.
Usage
Private cloud storage; Kubernetes persistent volumes (RBD, CephFS); S3-compatible object store; replace SAN/NAS at scale.
Pros and cons
| Pros | Cons |
|---|---|
| Object, block, file in one stack | Operationally complex |
| Scales out, self-healing | Requires careful planning |
| Used in OpenStack and K8s | |
| No single point of failure |
Alternatives
MinIO (object only), Longhorn (block). Why Ceph: Need unified object/block/file at scale (e.g. OpenStack, large K8s).
Links
- Homepage: https://ceph.io/
- Documentation: https://docs.ceph.com/
- Source: https://github.com/ceph/ceph