What's the Quarantine state in Windows Failover Clusters

In this article we cover why Windows Failover Cluster nodes can go into a quarantined state, how to resolve this as well as how to set threshold values for this cluster node state.

Improving Availability Groups

Availability Groups are a good way to use High Availability in SQL Server, Today Steve wonders if you have any improvements you would make to the technology.

Do *not* place TEMPDB on a local disk in a SQL failover cluster

What happens with tempdb on a local disk in a cluster? Read on to see that you will not get a failover if the local disk fails

Steps for Installing AlwaysOn Availability Groups - SQL 2019

With SQL Server 2012 Microsoft introduced the AlwaysOn Availability Group feature, and since then many changes and improvements have been made.  This article is an update to another article, and will cover the prerequisites and steps for installing AlwaysOn in your SQL Server 2019 environment. Prerequisites Before implementing your AlwaysOn Availability Group (AG), make sure […]

Non AG Aware

Make SQL Server Agent Jobs HADR Aware

Introduction Always On Availability Groups (AGs/AG...

Enabling Container Availability Groups

Availability Groups with Docker Containers

Build a SQL Server AlwaysOn environment with docker

Configuring Availability Groups in Ubuntu

In this article, we will review how to configure Always On Availability Groups in Ubuntu Server using the Pacemaker cluster. The following are the high-level steps to configure Always On Availability Groups (AOAG) with an Ubuntu server. Install SQL Server on Ubuntu 16.04 Install Pacemaker agents and configure the cluster Create Always On Availability Groups Create […]

Have You Deployed an Availability Group?

Learning about the Availability Group technology can be valuable for your career. Today Steve asks if you've deployed one, and if not, perhaps you want to try.