Moving on to a new blog...

To all my readers I want to thank you!  Over the last couple of years I’ve gotten lots of great feedback and comments on this blog.   It has been read over 386,000 times as of 2/13/2011.   I hope you’ll join me on my new blog where I hope to put out more real…

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Wow... Hyper-V does it again - RemoteFX and Dynamic Memory

Hard to believe it has been eight months since my last post.  I’ve been deep into Windows Sercurity and Reliabiltiy and was fortunate enough to have a chance to contribute to one of the two features I’m briefly blogging about today – RemoteFX. So what are RemoteFX and Dynamic Memory?  RemoteFX is the next step in…

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Windows Server 2008 R2 Virtual Hard Disk (VHD) Performance Paper

If you have been looking for VHD performance data the paper below should give you a lot of what you have been looking to find.  The paper compares VHD performance on Windows Server 2008 and Windows Server 2008 R2.  It uses the new Native VHD implementation for R2 and loopback VHD 2008.  There are some…

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Hyper-V iSCSI performance numbers

I’ve seen a number of threads and questions recently around iSCSI performance in virtual machines.  If you are looking for Hyper-V information I suggest you check out the following paper: iSCSI 10 Gigabit Ethernet Performance Tuning With Windows Server® 2008, Hyper-v and the NetApp FAS® 3070 http://download.microsoft.com/download/F/B/3/FB38CA2C-6694-4D25-8452-4A28668A87F2/MSFT-NetApp-10G.docx This paper has a really good overview of…

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Hyper-V Performance FAQ R2

Anthony F. Voellm (aka Tony) 12/17/2009 http://blogs.msdn.com/tvoellm This FAQ is titled R2 since it updates the original FAQ as of the Windows Server 2008 R2 Hyper-V.  Since Hyper-V originally released we have continued to improve it.  We have new features in R2 like Live Migration, support for 64 processors and lots of improvements in networking…

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WS08 Hyper-V as RTMed!!!!

Wow its been a great ride helping get Hyper-V to perform the way it does.  So much so I’ve not posted in a while.  You will see some upcoming posts on performance counters, WMI perf interfaces, and real data (yes now with RTM I can post data). In the meantime check out my co-workers post on…

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Negative ping times in Windows VM's - whats up?

Just a quick blog post that might help you resolve an issue that some customers have seen running under Hyper-V VM’s.  The issue is negative ping times on multi-processor guests. If you see negative ping times in multiprocessor W2k3 guest OSes you might consider setting the /usepmtimer in the boot.ini file.  The root issue comes…

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Hyper-V Performance Counters – Part one of many - The overview

[[ ***IF YOU HAVE SPECIFIC QUESTIONS ON PERFORMANCE COUNTERS YOU WANT ANSWERED  PLEASE POST A REPLY WITH THE QUESTION***]] In the next few posts I’ll be covering Hyper-V performance counters.  There have been a lot of changes from Beta -> RC -> post RC.  In Beta the counters sets for Hyper-V were not grouped under a…

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Hyper-V: Clocks lie... which performance counters can you trust?

Many people have asked me how to do performance analysis using Hyper-V.  The first thing I always tell them is clocks lie.  Lets dig into this a little bit. First some basic concepts.  There are two types of partitions that the Hypervisor manages.  The root partition which is special (manages physical devices, child partitions, ……

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Good overview of virtualization

Every now and then I come across articles on virtualization.  This one caught my attention because of the amount of technical details.  Detail is what I strive for in this blog and I have some good detailed posts on the way.  http://it.anandtech.com/IT/showdoc.aspx?i=3263   The coming Windows Hyper-V solution is Hypervisor based and has a mix of…

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