We use VMware Workstation 7 as development environment for our SharePoint projects. This tool itself is great, but actually we are experiencing heavy disk i/o when we shut down a virtual machine or when we switch a virtual machine in suspend mode. That’s an annoying behavior, when you shut down a virtual machine, quit VMware Workstation and try to shut down the host (Windows 7 Enterprise). Shutting down the host approx. lasts about 10-15 minutes.

It seems that a simple entry in the config.ini of VMware Workstation could solve this behavior. I found this entry in “http://sanbarrow.com/vmx/vmx-advanced.html”. The config.ini file for VMware Workstation is stored in “C:\ProgramData\VMware\VMware Workstation”. If you are just using VMware Player, you find this file in “C:\ProgramData\VMware\VMware Player”. Just add the line

mainMem.useNamedFile = “false”

to this configuration-file. Save the file and restart VMware Workstation or Player. What you might see, when suspending a virtual machine, this action will last a little longer. But it seems, that the disk activity after quitting VMware Workstation has gone.

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