# SDS - Maintenance Overview

The following procedures are provided to help you maintain system database synchronization within an established data-sharing community:

- Upgrading Elements for Data Sharing

- Start Sharing with a New Element

- Removing a Data Sharing Element

- Changing the distribution scope of shared forms

- Splitting a data-sharing cluster

- Merging data-sharing clusters

- Repairing Data

- Performing backups and restores