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- Take a full backup from your current farm.
- Take a full backup of SharePoint content databases in case you want to use Database-Attach method.
- Backup all the deployed SharePoint solutions (WSP) in your farm if exist.
- Determine the SQL version.
The Backup-SPFarm cmdlet creates a backup for the entire farm or individual components within the farm. It can also be used to back up just the configuration settings of a farm to be used as a farm template for other SharePoint farms. If you want to back up a single site collection, use the Backup-SPSite cmdlet.
How can I back up my SharePoint server farm?
You can back up a SharePoint Server farm by using the SharePoint Central Administration website, Microsoft PowerShell, or SQL Server tools. The backup tool that you use depends on the kind of environment that you have deployed, your backup schedule requirements, and service level agreements that you have with your organization.
How to restore a farm from a backup?
You can use Central Administration to restore a farm or components of a farm. Verify that the user account that is performing this procedure is a member of the Farm Administrators SharePoint group. Start Central Administration. In Central Administration, on the home page, in the Backup and Restore section, click Restore from a backup.
You must perform a full backup before you can perform a differential backup. In the Back Up Only Configuration Settings section, click Back up content and configuration settings. In the Backup File Location section, type the UNC path of the backup folder, and then click Start Backup.
You cannot back up from one version of SharePoint Server 2019 and restore to another version of SharePoint Server 2019. The same applies to SharePoint Servers 2016 and 2013. Backing up the farm will back up the configuration and Central Administration content databases, but these cannot be restored using SharePoint Server tools.