# Object storage

Storage reachable by every node in a cluster. Inputs must live here, or in workspace storage, rather than on one machine’s local disk.

Source: https://university.eugo.io/glossary/object-storage

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The one storage location every worker can reach in parallel, which makes it the right home for anything a distributed task reads. Workspace storage is visible to your session but generally not to a worker on a compute node.

## Related terms

- [Workspace](https://university.eugo.io/glossary/workspace) — An isolated compute environment with its own persistent storage, preinstalled libraries, and resource allocation. Where your sessions and clusters run.
- [I/O-bound](https://university.eugo.io/glossary/io-bound) — A workload whose runtime is limited by reading and writing data rather than by calculation. Adding workers to an I/O-bound job adds waiting, not throughput.
- [Persistent storage](https://university.eugo.io/glossary/persistent-storage) — Workspace storage that survives between interactive sessions. Files saved elsewhere in a session are lost when it ends.