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> **Documentation Index:** Fetch the complete configuration index at https://ydb.tech/docs/en/llms.txt

# Concepts for DevOps Engineers

This section supplements the general [Concepts YDB](https://ydb.tech/docs/en/concepts/index.md) section with theoretical materials primarily relevant for DevOps engineers.

Main topics:

* [YDB System Requirements and Recommendations](https://ydb.tech/docs/en/devops/concepts/system-requirements.md)
* [YDB Versioning](https://ydb.tech/docs/en/devops/concepts/versioning.md)
* [Maintenance without downtime](https://ydb.tech/docs/en/devops/concepts/maintenance-without-downtime.md)

See also:

* [YDB Deployment Options](https://ydb.tech/docs/en/devops/deployment-options/index.md)
* [YDB Cluster Configuration](https://ydb.tech/docs/en/devops/configuration-management/index.md)
* [Observability Overview](https://ydb.tech/docs/en/devops/observability/index.md)
* [Backup and Recovery](https://ydb.tech/docs/en/devops/backup-and-recovery.md)