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Day: September 11, 2026

The Server Room in the Attic

Thomas Rushton whips out a story:

Anyway. Big Victorian mill-type building. First floor, document management, printing, post rooms, etc, going up. Second floor – erm… document processing? Finance? Third floor – IT, call center, network room, board room, lawyer-types. Fourth floor, just underneath that slate roof, held a smaller office full of debt recovery specialists, and the main server room.

What could possibly go wrong?

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100 Hours of Work

Steve Jones talks about a tough week:

I was a relatively new hire, a former intern, at a large electrical utility in Virginia. I worked as a network admin at a nuclear power plant in Surrey, VA. I showed up at work on New Year’s Eve at 5:00pm. We were planning on deploying a new database server running SQL Server, along with a new application to track radiation exposure for workers. This was a mandated change to our tracking, which needed to go live at midnight. I was supposed to be a bystander, helping developers from our internal group implement the server and then take over administration for the future.

What could possibly go wrong?

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What “Clean Data” Means in Microsoft Fabric

Christian Henrik Reich lays it out:

You might have heard countless times that AI needs high-quality and clean data to work properly. However, this is often not accompanied by an explanation of what it actually means. In this post, I will explain how you can achieve this in Microsoft Fabric.

I’ll explain the foundation for how you can prepare your data so your solution can answer business questions, either through reporting or AI.

Clean data alone is not enough. Data also needs to be structured, understandable, and accessible in a way that allows your solutions to answer business questions reliably.

The fancy buzzword that describes a lot of what Christian covers is “ontology” but I appreciate this more detailed description versus relying on a buzzword as a crutch.

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A Pernicious Floppy Disk

Deb Melkin deals with disaster:

One morning, the help desk support person came over and said this one client was having performance issues. This was one of the cases where we would just reboot. It was early and there would be plenty of time for everything to be back up and running before the system was needed. So I gave the go ahead to reboot the server.

This did not go well. Read on for the rest of the story.

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DAX at the Correct Granluarity

Marco Russo and Alberto Ferrari provide some advice:

DAX code is often short. Understanding the question that the code must answer may be much harder.

Consider a calculation that multiplies a quantity by a rate. The formula appears simple, yet it is correct only if the quantity and the rate are evaluated while the rate has a clear meaning. If you perform the calculation after combining different rates, DAX must aggregate the rates somehow: AVERAGEMIN, or MAX can return a number. However, returning a number does not make that number meaningful.

Read the whole thing.

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A Trio of Outages

Andy Yun has been a part of several outages over the years:

My very first job out of college, I worked at a small boutique internet consulting firm that did some hosting in our back office. We had a T1 line coming into our office, which was a space that was part of a strip mall actually. One summer morning, we’re at our desks doing our thing and “hey, I just lost Internet connection, anyone else?” 

Click through for the conclusion of that story, as well as two other times everything went sideways. This might also be a good time to check your backups and make sure they’re working fine.

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