Dec 20, 2018 · Through working with customers who are deploying SQL Server 2012 AlwaysOn currently, we have seen the following design patterns emerge as end-to-end HA+DR solutions: Using Multi-site Failover Cluster Instance (FCI) for local …

Microsoft SQL Server 2012 AlwaysOn provides flexible design choices for selecting an appropriate high availability (HA) and disaster recovery (DR) solution for your application. There are multiple design patterns for building SQL Server 2012 AlwaysOn HA and DR solutions

Jul 9, 2019 · To enable AlwaysOn on SQL Server 2012 + Above, both nodes must be a Cluster member as follows. The necessary definitions for access between the first node to be configured and the second node via ports 1433 and 445 must be done.

Mar 23, 2019 · AlwaysOn Architecture Guide: Building a High Availability and Disaster Recovery Solution by Using Failover Cluster Instances and Availability Groups: http://msdn.microsoft.com/en-us/library/jj215886

Sep 29, 2024 · For SQL Server, a role will be either an Always On availability group (AG) or Always On failover cluster instance (FCI). A role contains all of the cluster resources that are required for an AG or FCI.

Jun 23, 2012 · This paper covers one of the three common customer HA and DR design patterns discussed in Sanjay’s SQL Server 2012 AlwaysOn High Availability and Disaster Recovery Design Patterns post. You can download the new white paper here.

Mar 22, 2019 · When you design a cluster, you set up quorum voting so that the nodes work together to elect a leader. In theory, you can’t run into a split brain scenario automatically – but, you can most definitely run into it manually if you go behind the scenes and change cluster settings. The simple answer here: education.

Jul 3, 2012 · One pattern is to use a multi-site Failover Cluster Instance (FCI) for local high availability and disaster recovery. A second pattern is to use AlwaysOn Availability Groups (AG) for local high availability and disaster recovery.

Mar 3, 2023 · With the new capability of SQL Server to cluster nodes across different subnets, you can now configure SQL Server failover clusters across multiple sites without implementing the stretch V-LAN technology. You may want to consider the following failover behavior if you set the IP address resource dependency is set to OR:

Mar 30, 2021 · Configure an Always On Availability Group between both installed SQL Server cluster instances between both datacenters. The Windows clustering part is usually done by your platform team, whereas the rest of the steps are usually covered by DBAs. Let’s start with verifying the pre-requisites followed by the deployment.