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VMware ESX 4.1 (finally) supports USB device passthrough from an ESX or ESXi host to a virtual machine.
Requirements
USB device passthrough requires:

Virtual hardware version 7 or higher

A USB Arbitrator

A USB controller

A USB device or device hub

Limitations
The USB Controller has these limitations:

USB controller hardware and modules that support USB 2.0 and USB 1.1 devices must be present on the [...]

Only those network adapters that are appropriate for the virtual machine you are creating, are available configuration options in the Choose Networks window.

Vlance — An emulated version of the AMD 79C970 PCnet32 LANCE NIC, an older 10 Mbps NIC with drivers available in most 32bit guest operating systems except Windows Vista and later. A virtual machine [...]

I’ve read about this presentation on Eric Sloofs Blog created by Nicholas Travers who works as a VMware Technology Consultant at EMC. The presentation is called “Storage Protocol Choices & Storage Best Practices for VMware ESX” and deals with storage considerations like:

How many VMs per LUN?
Standard LUN Size?
NFS, RDM or VMFS?
iSCSI, or FC?
How do [...]

Hi.
I’m pretty sure that the Checksum Offload causes a bunch of network slow downs – especially in a virtual environment.
Whenever a customer says that it takes a good few seconds to open i.e. a Word document, placed on a share, I always disable Checksum Offload wherever possible on the NIC, inside the VM. This has [...]

Here is a step-by-step guide to get VMware vSphere Client and the vSphere Host Update Utility to work in Windows 7. My system is running Windows 7 – 64-bit, so please make sure you enter the correct “Program Files” folder if your system is 32-bit. Let’s get started:
1.  Open the following folder:
     C:\Program Files (x86)\Vmware\Infrastructure\Virtual [...]