Rehearse a piecemeal restore that brings PRIMARY and current data online first, then restores archive filegroups with the right log chain.
Distributed Availability Groups: Linking Two Sites Without One Big Cluster
Understand distributed availability groups, connect two existing groups across sites, inspect health, and plan recovery without one cluster.
Offloading Reports to a Readable Secondary
Readable secondary replicas can serve reports away from a SQL Server primary; learn routing, lag, licensing, and query differences to test.
Availability Groups or Failover Cluster Instances
Availability groups or failover cluster instances protect different SQL Server boundaries; compare data copies, shared storage, failover, and cost.
MultiSubnetFailover: Why Clients Time Out After an AG Failover
Diagnose an AG failover timeout with listener DNS, MultiSubnetFailover, RegisterAllProvidersIP, HostRecordTTL, and client-driver checks.
Testing a Failover Before You Need One
Testing a failover reveals connection, data, job, and recovery gaps before an outage; learn to plan a SQL Server drill and record the result.
Monitoring Availability Group Health
Monitor availability group health through replica connection state, database synchronization, send and redo queues, and failover readiness checks.