SQL Server 2022 introduces a new feature to enable application-consistent snapshot backups. TSQL Snapshot Backups enable the SQL Server to control the database quiesce without external tools. Using TSQL Snapshot backups enables instantaneous restores, independent of the size of data, for a database, group, or server backups, including point-in-time recovery.
When you use this feature, it freezes I/O. You’ll see a record like this in your error log when you execute the command ALTER DATABASE TestDB1 SET SUSPEND_FOR_SNAPSHOT_BACKUP = ON.