2026-09-18
1,367 reads
HA/DR/AG/FCI/Clustering/Business Continuity
2026-09-04
1,485 reads
The Mythical Bus Accident
Preparing for disaster is important, both at work and in your personal life.
2026-07-17
149 reads
Correct SQL Server Always On Availability Group Not Synchronizing
We had an issue with a SQL Server database in an Always On Availability Group (AOAG) where it was not synchronizing the secondary replica even though it was using the “Synchronous commit” Availability Mode for the secondary replica. This article explains how to troubleshoot and resolve:
2026-07-10
Add New Disk to Windows Failover Cluster for SQL Server
I have a 2-node failover cluster instance running on Windows Server 2019 Standard edition. I have a requirement to add a new SAN disk to the SQL Server failover cluster instance (FCI), and then I need to move a user database to that newly added shared disk. Can you show the steps required to add a new disk to the FCI and move the user database?
2026-07-01
Add Nodes to SQL Server 2022 and Windows Server 2022 Failover Cluster
I used the guide in a previous tip on Install SQL Server 2008 on a Windows Server 2008 Cluster Part 1 to install a SQL Server 2008 on a Windows Server 2008 failover cluster (WSFC). Now, I would like to upgrade and migrate my SQL Server 2008 failover clusters to SQL Server 2022 running on Windows Server 2022. What is the process for installation and configuration?
2026-06-26
Do You Really Need HA?
Steve asks the question about whether or not a particular environment really needs HA implemented.
2025-11-10
182 reads
SQL Server 2022 Clusterless Distributed Availability Group
This article shows the final step of an availability group creation, specifically for a distributed clusterless one.
2025-07-14
5,326 reads
2025-05-12
313 reads
2025-04-28
429 reads
Blogs
How to Clear the SSMS Cache (SSMS 21 and Later)
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How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
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“What exactly did it do on my server?” is the first question a DBA...
Announcements from the Microsoft Fabric Community Conference — Barcelona 2026
By James Serra
Microsoft shared a broad set of Fabric, Power BI, and SQL updates at FabCon...
Forums
Let's Talk Certifications
Comments posted to this topic are about the item Let's Talk Certifications
The Hidden Security Risks of Role Combination in SSAS Tabular
Comments posted to this topic are about the item The Hidden Security Risks of...
The Empty Aggregate
Comments posted to this topic are about the item The Empty Aggregate
Question of the Day
The Empty Aggregate
I have this table in a SQL Server 2025 database:
CREATE TABLE [dbo].[CustomerOrder] ( [OrderID] [int] NULL, [CustomerID] [int] NULL, [total] [money] NULL ) ON [PRIMARY] GOWhat is returned from this code? (answers are for the sum and then the count)
SELECT SUM(total) AS sum,
COUNT(total) AS count
FROM dbo.CustomerOrder;
See possible answers