Tag Archives: performance

Using the Windows Volume Shadow Copy Service (VSS)

Having just written an article about how to get items back from a volume shadow copy, I thought I should make some notes about how VSS works, how to configure it, and actually get VSS to create you some shadow copies! This … Continue reading

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PowerShell: Email on high CPU usage

Another quickie. The requirement was to get an email alert when CPU usage reached over 90%. This is achievable via PerfMon Data Collector Set alerts, EventLog task triggers and a script to send an email (unless you’re on pre-Server 2012 … Continue reading

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Defrag your VMs to improve storage performance

Even if you have some kind of clever VM storage device such as a Tintri, ideally you should still defrag your VMs. If you’re still running VMs on a legacy SAN you should definitely keep them defragged. I’m not going … Continue reading

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Posted in Hyper-V, Storage, vSphere | Tagged , , , , , , , , , , , | Leave a comment

Enterprise Storage Part 1 – What are IOPS, and other basics

If you’re specifying storage for enterprise class applications, or more recently, looking at specs of Solid State Disks – even ones for your PC, you’ll see a lot of mentions of IOPS. What exactly are IOPS? IOPS stands for Input/Output operations … Continue reading

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Bye-bye SAN, Hello Tintri

I first came across Tintri over a year ago, had a look at their product on their website and thought “this sounds rather good”. I’ve chatted to them at IP Expo for the last two years, and recently had a WebEx with a … Continue reading

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Posted in Hardware, Storage, vSphere | Tagged , , , , , , , , , , , , , , , , , , , | 4 Comments

Windows Server 2012 Remote Desktop Session Host RemoteFX CPU and GPU usage

These post titles are becoming a bit of a mouthful… Anyway, did some testing today to see what the CPU and GPU usage was when playing full screen video. Test server is an HP Z220 workstation with a single Intel … Continue reading

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Posted in Hardware, Performance, Remote Desktop, Windows | Tagged , , , , , , | 12 Comments

Monitoring Server 2012 Hyper-V host CPU usage

If you open Task Manager or use Performance Monitor (perfmon, % Processor Time) to look at the CPU usage on a Hyper-V host you only see the CPU that’s being used by the host (aka root partition). So you could … Continue reading

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Basic Windows Performance Testing

I wanted a basic, quick way to evaluate performance between a Windows Server 2008 R2 VM running on different host hardware, and for free. It turns out that you can use the utility that Windows 7 uses to give you … Continue reading

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