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SQL Server performance – measure Disk Response Time

16 Feb

Introduction

As DBAs, we all get to the point where we are asked to setup a new server for a particular environment. Setting up a new server is not a big thing but giving the answer to the question that “how well it will work” might be tricky.

There are tons of items which we can set up to measure how well the newly installed server will receive a response, but here I will discuss one of the most valuable resources of the server “Disk.” Most often the disk is not measured correctly, or I have seen environments where the disk response time has never been measured. I will discuss here a tool from Microsoft which is very handy and can solve your problem very quickly. The diskspd.exe!

It’s the superseding version of SQLIO which was previously used to measure IO response time for the disk. The source code of diskspd.exe is hosted on GitHub. You can download this free utility from Microsoft’s website using this link.

After you download the utility, you will get a zip file. Just unzip the file, and it will give you the folders and files as shown in the below screenshot. You will-will need the eye of diskspd inside the folder “amd64fre” if you have a SQL Server 64-bit version (most of us will be having this).

To complete this article please check it here

 

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Posted by on February 16, 2017 in General topics, SQL Server 2014

 

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