Running 50 SharePoint content databases through a sequential backup-and-restore cycle takes roughly 25 hours — a migration window that doesn't fit any realistic production weekend. This post covers four PowerShell scripts that implement a throttled parallel execution pattern, compressing that window to under 4 hours without saturating your SQL Server or storage infrastructure. Includes the full orchestrator, a log shipping seeding variant, and a six-point performance tuning checklist for production environments.