Organizations that use a public DNS zone name, such as tailwindtraders.net, for their organization’s internal host names, perhaps even using it with their organization’s Active Directory instance, generally have to configure what is known as split-brain DNS. Split-Brain or Split-Horizon ... continue reading

Introduction The topic of mixing SQL Server Failover Cluster Instances (FCI) with Always On Availability Groups (AG) is pretty well documented. However, most of the available documentation documents configurations that assume the SQL Server FCI portion of the solution utilizes ... continue reading

Azure SQL Managed Instance is fully managed SQL Server instance hosted in Azure cloud. Managed Instance introduces some limits such as max log write throughput that can slow down your workload. In this post you will see how to identify ... continue reading

Wait statistics are information that might help you understand why the query duration is long and identify the queries that are waiting for something in database engine. In this post, I will show to you how to identify why the ... continue reading

Checking file performance and comparing performance characteristics between SQL Server database engines in Azure cloud and your on-premises environment might be tricky and require some better knowledge of DM objects. In this post, you will see how to use one ... continue reading

Summary Recently, a few SDN customers have hit an issue where after updating their SDN environments with patches, SDN stops working. This issue has been fixed in the latest update (KB4487006). All customers are strongly recommended to this update to ... continue reading

If you have been following my blog, you probably know that I write a lot of step-by-step guides for building SQL Server Failover Cluster Instances (FCI) on Azure, from SQL Server 2008 through the lastest. Here are some links to ... continue reading

Always On availability groups (AG) provide high availability and disaster recovery capabilities to your SQL Server database, whether on-premises, in the cloud, or a combination of both. Manually deploying an availability group for SQL Server on Azure Virtual Machines (VM) ... continue reading

___________________________________________________________________________________________________________________________ IMPORTANT ANNOUNCEMENT FOR OUR READERS! AskPFEPlat is in the process of a transformation to the new Core Infrastructure and Security TechCommunity, and will be moving by the end of March 2019 to our new home at https://aka.ms/CISTechComm (hosted at ... continue reading

As a modern developer, you may be eager to build your own deep learning models but aren’t quite sure where to start. If this is you, I recommend you take a look at the deep learning course from fast.ai. This ... continue reading