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Network performance with VMXNET3 on Windows Server 2012 R2

Introduction In this post we will cover an updated version for addressing VMXNET3 performance issues on Windows Server 2012 R2. As with an earlier post we addressed Windows Server 2008 R2 but, with 2012 R2 more features were added and old settings are not all applicable. What To Change According to VMWare you may experience issues similar to: Poor performance Packet loss Network latency Slow data transfer... read more

How to Fix General Protection Fault in module WIN87EM.DLL while running Windows 7 in VMWare

Recently ran into an issue with a Windows 7 32-bit VM running in VMware Fusion on Mac OSX 10.9 (Mavericks) when running a Point of Sale application would receive a Application has caused a general protection fault in module WIN87EM.DLL. Starting doing some digging and found this thread discussing the issue at... read more

How to Windows P2V Using VMware vCenter Converter for Virtualbox

Download and install VMware vCenter Converter for Windows and install it on the physical Windows XP or higher machine to be converted. Run the VMware Converter on the physical host. It will take sometime to run and possibly may create multiple vmdk files. Transfer the converted virtual machine files to the destination host from the external drive. The Windows   7 physical machine is no longer needed. The... read more

Optimal Network Adaptor Settings for VMXNET3 and Windows 2008 R2

There is an ongoing debate between many admins on what are the best settings for the VMXNET3 driver on Windows 2008 R2 settings and I suppose there will be many more. In this postI will attempt to point out some of the options and recommended settings for the VMXNET3 adaptor.  Global Settings Receive Side Scaling (RSS) Receive-Side Scaling (RSS) resolves the single-processor bottleneck by allowing the... read more

How To Fix VMware Error IP address already assigned to another adapter

There has been times when you have deleted a NIC in VMware and to the eye it looks like it is gone but really it is still there and it rears it’s ugly head when you try to re-add it to a Windows VM. You will receive errors similar to the following. The IP address XXX.XXX.XXX.XXX you have entered for this network adapter is already assigned to another adapter Name of adapter. Name of adapter is... read more

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