Ceph
Ceph is a distributed storage platform that can expose object, block, and file interfaces from the same underlying cluster.
That breadth is what makes it fascinating. It is not only a place to store bytes; it is a storage architecture with its own placement logic, failure-domain thinking, and cluster-operating discipline.
Where it fits
Ceph is useful when infrastructure needs resilient shared storage across multiple machines, especially when workloads mix virtual machines, containers, research platforms, and service infrastructure.
It is a natural companion to Proxmox clusters and other self-managed Linux platforms where storage should scale with the rest of the infrastructure.
What makes it distinctive
- A single cluster can support object, block, and file use cases.
- Data placement and replication are designed around failure domains rather than a single storage appliance mindset.
- It scales by embracing distributed systems complexity instead of hiding it.
Operational concerns
- Failure-domain-aware placement is essential.
- Capacity rebalancing and recovery traffic can affect production behavior.
- Upgrades require careful health monitoring and patience.
- Observability matters because the cluster can look healthy at a high level while specific subsystems are already under stress.
Related
See also: HPC, BeeGFS, GlusterFS, MOC Computing DevOps and Software