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

# Storage Configuration

> YiDA Dedicated edition offers private storage options for business data, letting you choose either a public cloud or a dedicated hybrid cloud database for new or existing apps. Once dedicated storage is enabled, app data is stored in a dedicated PostgreSQL database and a dedicated attachment OSS. The process takes 3–10 minutes and is irreversible.

Dedicated edition only

| Feature                                  | Free plan     | Basic edition | Professional edition | Dedicated edition |
| ---------------------------------------- | ------------- | ------------- | -------------------- | ----------------- |
| Dedicated storage and dedicated security | Not supported | Not supported | Not supported        | Supported         |

This topic explains where to enable dedicated storage and how to do so for new or existing apps in YiDA Dedicated edition.

## Enable on Demand (App Level)

### 1. Enable When Creating a New App

When creating a new app, select whether the app's business data is stored in the public cloud (default) or in a dedicated hybrid cloud database (recommended for core critical data).

### 2. Enable Manually for Existing Apps

* As the App Admin, go to App Settings > Basic Settings > Dedicated Configuration in the app backend, then select and enable dedicated storage for the app.
* After you enable it, both historical data and future data for that app are stored in the dedicated PostgreSQL database and dedicated attachment OSS configured in platform management.
* App functionality is suspended during the upgrade, so perform this action during off-peak hours. The process takes about 3–10 minutes and cannot be canceled after completion. You can manually stop the upgrade while it is in progress.

### 3. Upgrade and Stop Operations

* Changing the app's basic framework configuration is a time-consuming operation. To stop the process midway, halt it manually. After you stop the upgrade, the app's basic configuration reverts to the original cloud storage settings and operating mode.
* Factors that affect upgrade duration: