With current market trends of cloud shifting, many of my clients have moved their SQL Servers from on-premise virtual machines to Microsoft Azure Virtual Machines. In this blog, I would explain a situation where my client was not able to find relevant size when he wanted to upsize the VM to a higher tier.
SQL SERVER – Scripts to Overview HADR / AlwaysOn Local Replica Server
Today, I have received a very interesting script from SQL Server Expert Dominic Wirth. He has written a very helpful script which displays a utilization overview of the local availability group replica server. The overview will contain the number of databases as well as the total size of databases (DATA, LOG, FILESTREAM) and is group by following two categories
SQL SERVER – Database Mirroring Login Attempt Failed With Error: ‘Connection Handshake Failed. An OS Call Failed: (80090350)
While Microsoft has introduced an AlwaysOn availability group feature in SQL Server 2012 and people have been using it instead of database mirroring. In this blog, we would learn how to fix error Database Mirroring login attempt failed with error: ‘Connection handshake failed. An OS call failed: (80090350).
SQL SERVER – Install Error: Microsoft Cluster Service (MSCS) Cluster Verification Errors – Part 3
In recent past, I was assisting a client in installing SQL Server clustered instance in a Windows Cluster. There were many errors encountered and I learned a lot from this experience. In this blog, we would learn about Microsoft Cluster Service (MSCS) cluster verification errors which might appear during installation or AddNode.
SQL SERVER – Always On Replica Disconnected After Changing SQL Server Service Account
In my lab environment, I was testing a script to change service account and it worked fine. I had Always On configured on this SQL Server and soon I realized that after changing the SQL Server service account, the secondary replica went into a disconnected state.
SQL SERVER – Slow SQL Server 2016 Installation in Cluster: RunRemoteDiscoveryAction
As a part of my AlwaysOn related consultancy, one of my clients was having challenges to install SQL Server 2016 in a clustered environment. In this blog, we would learn about the cause of Slow SQL Server 2016 Installation in Cluster.
SQL SERVER – Parallel Redo on AlwaysOn Secondary – DIRTY_PAGE_TABLE_LOCK
As most of you might know that my expert area in SQL Server in performance tuning. But, I also deal with almost every issue related to SQL Server engine. Many times, it so happens then clients call me for performance tuning and while fixing, we see some other problem. In this blog, we would learn about Parallel Redo on AlwaysOn Secondary causing new waits which were introduced in SQL Server 2016.