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.
Database Migration
SQL Log Shipping for SharePoint 2019 to Subscription Edition Migration: Step-by-Step Setup Guide
SQL Server log shipping is the database-layer engine that makes zero-downtime SharePoint migration possible — keeping your secondary SQL instance continuously synchronized while you prepare, so final cutover shrinks from hours to minutes. This post covers the full lifecycle: configuring log shipping across all SharePoint content databases using a CSV-driven PowerShell script, monitoring restore latency, simulating and repairing a log chain break, and cleanly disabling jobs at cutover. Production-ready scripts for 50+ databases are available in the SQL Migration Bundle.