High Availability/Disaster Recovery (HADR) feature in Microsoft SQL Server 2012 and above.

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Error configuring File Share Witness in a Windows 2012R2 Cluster

I'm learning how to configure a simple W2012R2 Cluster for a AlwaysOn Basic Availability Group. I have this VM scenario: - 1 DC (outside the cluster) - 2 SQL Server Standard 2016 (in a Cluster) I'...
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2answers
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SQL 2012 Standard - AlwaysOn FCI - Single point of contact?

I am looking at HA options for SQL 2012 Standard. I like the look of AlwaysOn FCI. I am using a SAN, so I think I can meet all of the requirements, but one of the applications I am looking at cannot ...
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22 views

Unable to Change SQL Server 2012 Service Account When Using AlwaysOn Availability and TDE Encryption

I am unable to successfully change the service account in SQL Server 2012. Whenever I attempt to change the service account, the service starts up but the databases in the cluster are not synchronized....
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296 views

Unable to create cluster in Windows Server 2012 R2

I am trying to create a cluster in between two networks/gateway and validation is perfectly passing and after that i am getting error as An error occurred while creating the cluster and the nodes ...
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2answers
158 views

SQL 2012 Availability Group Doesn't Failover When Shutting Down Service

I am having an issue with SQL 2012 Availability Groups where it does not fail over when shutting down the service. When you shut down the service you will get an error: A network-related or instance-...
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136 views

SQL Server 2012 AlwaysOn Availability Groups Server Logins Fails When Switching Between Nodes

I am setting up a 3 node cluster as part of an availability group. Initially I tested failover between nodes using SQL Management Studio and everything failed over successfully when I stopped a node, ...
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138 views

SQL 2012 AlwaysOn Availability Groups Failover Successfully But Application Complains About Login Failed for User

I am trying to get SQL 2012 AlwaysOn Availability Groups working for an application. The cluster has 2 SQL nodes and 1 witness server. Everything appears to be failing over successfully when I do ...
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76 views

How to setup user accounts on a secondary server in High Availability?

Working with two Microsoft SQL 2012 servers in Always On High Availability configuration running on Windows Server 2012 R2. Setup works well and failover is almost flawless. However, the software ...
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63 views

Run generic Windows Service with affinity for the Primary Replica of an SQL Server AlwaysOn Availability Group

Is it possible to configure a generic Windows service in a Windows Server Failover Cluster such that the service always runs on the same machine as the Primary Replica (read/write) of an SQL Server ...
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1answer
26 views

SQL alwaysON and WSFC

I have a WSFC configured on 2 (hardware)nodes with SQL AlwaysOn group. The problem is, if the node Where I have created the cluster goes down the cluster is not available for second node and here ...
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2answers
2k views

Windows Server Failover Clustering with two servers

I was going to create a Windows Server Failover Cluster, in order to set up MS SQL Server AlwaysOn Availability Groups. As a prerequisite of failover clustering, I've created and configured an ...
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120 views

No messages received on Queue after Failover in SQL Always On

We have an Application, which uses Service Broker to receive notifications from the SQL Server. The application works fine when we don’t have SQL Always On enabled, and when we are interacting with a ...
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372 views

Automatic failover in SQL server alwayson availability group

I have 2 nodes in my SQL server fail over cluster. I use SQL server 2012 always on feature for HA purpose. The problem is that when one my server goes down the automatic fail over does not happen! ...
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1answer
466 views

SQL AlwaysOn auto fail over due to disk

All, I'm in the process of evaluating SQL AlwaysOn, and everything is failing over as expected, except in one circumstance, when the disk goes belly up. In this case, SQL does nothing, other than ...
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1answer
360 views

AlwaysOn Automatic Failover Using Two Nodes with SQL Standalone Instances

We are building a new SQL 2012 cluster for our web environment. We decided to use two nodes and utilize AlwaysOn Availability Groups for High Availability. Server01 and Server02 have had a Standalone ...
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2answers
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Dealing with Stretch (Geo) Cluster Node Failures

Scenario: Three node (shared nothing) cluster on Windows Server 2012. Two nodes in the primary data center, both with votes (node weight = 1), and a file share witness. The third node is in a remote ...