SQL Server Always On Availability Groups – Advanced Troubleshooting & Failover | SQL DBA Class 33 скачать в хорошем качестве

SQL Server Always On Availability Groups – Advanced Troubleshooting & Failover | SQL DBA Class 33

In this SQL DBA Class 33 session (Always On Part 2), we dive into advanced Always On Availability Groups troubleshooting, failover, synchronization fixes, and real-time issues faced by DBAs. 🔥 What You Will Learn: • Performing manual and automatic failover • Fixing synchronization issues (Not Synchronizing / Not Synchronizing – In Recovery) • Endpoint communication troubleshooting • Listener connectivity failures • Replica suspend/resume issues • Failover read/write redirection • Handling high-latency async replicas • Preferred replica settings for read workloads 🛠 Real-Time Errors Covered: • Error 35250 – Connection to replica failed • Error 35206 – Synchronization state not healthy • Replica stuck in resolving state • Database not joining AG • Failover blocked due to health check failures • Always On not starting after Windows patch/reboot • WSFC cluster resource failures 🔧 Hands-On Demo: • How to force failover safely • How to re-seed a failed secondary replica • Checking AG health using DMVs • Fixing endpoint AUTHENTICATION and PORT issues • Listener testing via SQLCMD and SSMS 📌 This session is a MUST for real-time SQL DBAs working on HA/DR or interviews. 👍 LIKE & SUBSCRIBE for more real-time SQL Server DBA classes.