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.
2021-02-08
Clustering
Preferred Node Policy-Setting on Traditional SQL Cluster
Preferred node setting facilitates instances on traditional cluster to be on the correct nodes which will lead to load-balancing of the resources.
2017-02-02
4,071 reads
Change the Collation Setting for Clustered SQL Server 2014 Instance
In this post I will show a procedure to change collation settings of SQL Server 2014 cluster instance.
2016-11-24
3,437 reads
SQL Server Restart or Cluster Failover Notification
How to create an automatic SQL restart or failover notification.
2018-06-22 (first published: 2015-12-10)
10,249 reads
How to Add a Drive as a Clustered Physical Disk Resource in Windows
This article is covers how to add a drive as a Clustered Physical Disk Resource in Windows 2003.
2015-11-09
6,651 reads
2015-07-17
1,354 reads
Managing MaxMemory Values on an Active-Active Two Node Cluster
How to manage your MaxMemory values on an Active-Active two node cluster.
2013-10-24
3,926 reads
Error during installation of an SQL server Failover Cluster Instance
A common issue I've run into while helping with SQL Server Failover Cluster (FCI) installations is the failure of the Network Name. In the following post I'll discuss a bit of background, the common root cause, and how to resolve it.
2013-10-16
2,239 reads
Monitor SQL Instance Balance across Windows Cluster Nodes Using PowerShell
This tip will demonstrate how to monitor SQL Failover Cluster Instances if they become unbalanced using Windows PowerShell.
2013-05-03
2,597 reads
Migration Guide: Migrating to SQL Server 2012 Failover Clustering and Availability Groups from Prior Clustering and Mirroring Deployments
This paper provides guidance for customers who prior to SQL Server 2012 have deployed SQL Failover Clustering for local high availability and database mirroring for disaster recovery, and who want to migrate to SQL Server AlwaysOn. It describes the corresponding SQL Server AlwaysOn scenario and the migration paths to SQL Server AlwaysOn. It also contains the important knowledge and considerations that you must know in order to successfully migrate to a HADR solution based on SQL Server AlwaysOn technology, which implements AlwaysOn Failover Cluster Instances for high availability and AlwaysOn Availability Groups for disaster recovery.
2012-04-13
2,738 reads
Blogs
The FinOps Lifecycle: From Budgeting to Reporting
By HeyMo0sh
Working in DevOps long enough teaches you two universal truths: That’s exactly why I...
Finding and Updating Duplicate IDs: #SQLNewBlogger
By Steve Jones
Finding duplicates was an interview question for me years ago, and I’ve never forgotten...
Optimising Costs: Strategies for Efficient Cloud Resource Management
By HeyMo0sh
Over time, I’ve realised that one of the hardest parts of cloud management isn’t...
Forums
Fun with JSON II
Comments posted to this topic are about the item Fun with JSON II
Changing Data Types
Comments posted to this topic are about the item Changing Data Types
Answering Questions On Dropped Columns
Comments posted to this topic are about the item Answering Questions On Dropped Columns
Question of the Day
Fun with JSON II
I have some data in a table:
CREATE TABLE #test_data
(
id INT PRIMARY KEY,
name VARCHAR(100),
birth_date DATE
);
-- Step 2: Insert rows
INSERT INTO #test_data
VALUES
(1, 'Olivia', '2025-01-05'),
(2, 'Emma', '2025-03-02'),
(3, 'Liam', '2025-11-15'),
(4, 'Noah', '2025-12-22');
If I run this query, how many rows are returned?
SELECT t1.[key] AS row,
t2.*
FROM OPENJSON(
(
SELECT t.* FROM #test_data AS t FOR JSON PATH
)
) t1
CROSS APPLY OPENJSON(t1.value) t2; See possible answers