Tag Archive: Computer Performance

Shutdown Computers from Command Line

SHUTDOWN Notification in Windows 8

SHUTDOWN Notification in Windows 8

I was recently surprised by how many seasoned IT Pros didn’t know that they had the ability to shut down a server or workstation from the command line using the SHUTDOWN command. Not only is it possible to shut down the local machine from the command line, but it is also possible to shutdown other machines on your domain as well. Read the rest of this entry »

Permanent link to this article: https://www.robertborges.us/2013/07/windows/shutdown-computers-from-command-line/

Getting Better Performance for Your Virtual Machines

As a seasoned virtualization expert (mostly with Hyper-V environments), I totally agree with the concept of building your VMs (virtual machines) and virtualization hosts to meet a particular need.

Often, I talk to SQL DBAs (database administrators) or Exchange administrators who swear that these platforms can NEVER be virtualized. This line of thinking is so wrong that Microsoft itself has bet their business around it (e.g., Office 365, Microsoft.com, etc.).

The most important piece of advice I give to virtualization newcomers is to treat a VM like you would a physical server. If a physical Exchange server needs 16GBs of memory and 4 CPUs, then building a VM with only a single virtual processor and 2GB of memory is going to result in a bad user experience, obviously.

HDD (hard disk drive) performance is always a concern with VMs. If you are creating a VM to run a disk intensive SQL server, then you will certainly care about your disk performance. With the more recent versions of Hyper-V, there is little noticeable performance reduction when choosing dynamically expanding VHD (virtual hard disk) vs. using a fixed size VHD. The big downside is that you now have to monitor and manage your storage on the host since your VMs can quickly consume physical space.

If extra disk performance is really needed, there is an option of using a pass-through disk. Pass-through disks will use an unused volume on the physical Hyper-V host as if that volume were its own. With pass-through disks you’ll get true hardware-level performance. The downside is that your VM is now tied to this physical storage making it difficult (or impossible) to migrate to a different host… so plan accordingly.

 

 

Permanent link to this article: https://www.robertborges.us/2013/05/virtualization/getting-better-performance-for-your-virtual-machines/

Easy Steps to Increase your Computer’s Performance

Speed up your computerAs you may have noticed, even the fastest computers tend to get slower as they age. These performance issues could be because either the hardware is no longer sufficient for the programs now running on it, or because it needs a little maintenance. Here are a few steps you can take to help speed up your system. Read the rest of this entry »

Permanent link to this article: https://www.robertborges.us/2012/04/windows/easy-steps-to-increase-your-computers-performance/

When is a computer too old? The Cloud may be changing how we think about this.

When is a computer too old? This question is getting harder and harder to answer. Traditional PC lifecycle thinking says that a PC is efficient to use up to 4 years old, and no longer cost effective to use beyond 5 years old. This is because the cost of maintaining the system is greater than the value of this old PC or laptop. Read the rest of this entry »

Permanent link to this article: https://www.robertborges.us/2012/02/cloud-computing/when-is-a-computer-too-old-the-cloud-may-be-changing-how-we-think-about-this/