Hyper-V: How to get the most from your virtualized disk performance

There are two types of disk controllers that Hyper-V supports: SCSI and IDE.  There are two IDE controllers and four SCSI controllers available. Each IDE controller can have two devices.  You can not boot from a SCSI controller.  This means an IDE disk will be required.  The boot disk will be IDE controller 0 Device 0.  If…

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Windows Hyper-V Beta what’s that ??? (Updated 12/13/2007)

Windows Hyper-V was previously called “Windows Server Virtualization” and shipped in the Windows Beta as a prerelease.  Now Hyper-V Beta (different name same cool product) is shipping with the latest Windows RC bits. Get it here http://www.microsoft.com/downloads/details.aspx?FamilyId=8F22F69E-D1AF-49F0-8236-2B742B354919&displaylang=en).  Also see the press release here http://blogs.technet.com/windowsserver/archive/2007/12/12/Yes_2C00_-Virginia_2C00_-there-is-a-Hyper_2D00_V-beta.aspx. So what is Hyper-V?  Simply put Hyper-V is Microsoft’s next generation virtual machines…

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Which Windows Server Virtualization 08 (code named Viridian) storage is best for you?

If you have had a chance to play around with our prerelease bits you might be wondering what all the types of storage are.  You might also be wondering how to decide which storage is right for your virtual machine (VM).  One question I’ll address in a future blog posting is storage performance.  Its a little early to talk performance…

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What you need to know about Windows Server Virtualization O8 (code named Viridian) Snapshot Performance

First let my say how happy I am to have real bits in your hands.  The next generation virtualization product from Microsoft has just shipped with the Windows Server 2008 RC0 (not the final product but getting close).  Check out this blog for some external to Microsoft perspective http://www.eweek.com/article2/0,1895,2189866,00.asp  What are virtual machine snapshots? A…

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Which is better a sample or instrumentation based profiler?

One of my passions is teaching performance and it is interesting to see students not realize the difference between instrumentation based profilers and sample based profilers.  In fact you might be wondering what the difference is now.  If you are keep reading. There are a couple of classes or profilers and instrumentation; Sample based –…

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Check out XEvent in SQL 2008 July CTP

SQL Server 2008 July CTP is out! – https://connect.microsoft.com/sqlserver/content/content.aspx?contentid=5395  One of the performance gems in the July CTP is the addition of SQL Extended Events (aka SQL XEvent).   This new eventing infrastructure enables developers to get a very detailed trace of what is happening inside the SQL product.  Out of the box there is support for sending…

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What do performance teams do?

I get the following question quite a bit… What do performance teams do?  Let me start by saying there are different types of performance teams.  There are Perf Development Teams, Perf Test Teams, “Central” performance teams, and Product/Feature Performance teams. Perf Development and Test Teams share a couple of functions in common; Do in depth analysis…

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Welcome…

Since this is my first post here I hope you don’t mind me taking a few lines to introduce myself.  My name is Tony Voellm and my passion is solving hard if not impossible problems.  This passion has naturally lead to a career in performance roles in everything from compilers, OS (Networking, Files Systems), and…

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