> ## Documentation Index
> Fetch the complete documentation index at: https://docs.skrmir.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Backup Model

> Backup and restore model for AiOS platform state, tasks, approvals, audit, and runtime artifacts.

# Backup Model

## Audience

This page is for operators and maintainers responsible for recovery, data protection, and disaster-readiness planning.

## Goal and Scope

This page explains what must be backed up in AiOS and how recovery should work with an externalized-state control plane.

## Core Concepts

### Primary state store

The following must use PostgreSQL as the authoritative source:

* task state and task steps
* approval tickets and consumption state
* audit events
* installer step events
* deployment records and revisions

### Object storage

The following belong in MinIO/S3-style object storage:

* archived install logs
* import reports and exported artifacts
* approval attachments
* runtime artifacts and supplemental logs

## Standard Workflow

1. back up critical PostgreSQL tables regularly
2. apply lifecycle and replication policy to key object-storage paths
3. restore external state first, then restore control-plane service replicas

## Related Pages

* [Deployment Lifecycle](/en/platform/deployment-lifecycle)
* [Logging Architecture](/en/operations/logging)
* [Upgrade Guide](/en/operations/upgrade-guide)