Software Update: VMware ESX(i) 4.0 Update 1 build 208167

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Virtualization has gained an increasingly prominent place in recent years. Well-known names include Xen and VMware. The latter company has with its vSphere 4 a solid platform. An important part of that platform is VMware ESX, which was also released as a free-to-use bare metal hypervisor with VMware ESXi as the product name. For more information, we refer you to this page. The developers released a new release a while ago with this time 4.0 Update 1 build 208167 as the version number. The list of innovations for ESX and ESXi looks like this:

What’s New

The following information provides highlights of some of the enhancements available in this release of VMware ESX(i):

  • VMware View 4.0 support – This release adds support for VMware View 4.0, a solution built specifically for delivering desktops as a managed service from the protocol to the platform.
  • Windows 7 and Windows 2008 R2 support –This release adds support for 32-bit and 64-bit versions of Windows 7 as well as 64-bit Windows 2008 R2 as guest OS platforms. In addition, the vSphere Client is now supported and can be installed on a Windows 7 platform. For a complete list of supported guest operating systems with this release, see the VMware Compatibility Guide.
  • Enhanced Clustering Support for Microsoft Windows – Microsoft Cluster Server (MSCS) for Windows 2000 and 2003 and Windows Server 2008 Failover Clustering is now supported on an VMware High Availability (HA) and Dynamic Resource Scheduler (DRS) cluster in a limited configuration. HA and DRS functionality can be effectively disabled for individual MSCS virtual machines as opposed to disabling HA and DRS on the entire ESX/ESXi host. Refer to the Setup for Failover Clustering and Microsoft Cluster Service guide for additional configuration guidelines.
  • Enhanced VMware Paravirtualized SCSI Support – Support for boot disk devices attached to a Paravirtualized SCSI ( PVSCSI) adapter has been added for Windows 2003 and 2008 guest operating systems. Floppy disk images are also available containing the driver for use during the Windows installation by selecting F6 to install additional drivers during setup. Floppy images can be found in the /vmimages/floppies/ folder.
  • Improved vNetwork Distributed Switch Performance – Several performance and usability issues have been resolved resulting in the following:
    • Improved performance when making configuration changes to a vNetwork Distributed Switch (vDS) instance when the ESX/ESXi host is under a heavy load
    • Improved performance when adding or removing an ESX/ESXi host to or from a vDS instance
  • Increase in vCPU per Core Limit – The limit on vCPUs per core has been increased from 20 to 25. This change raises the supported limit only. It does not include any additional performance optimizations. Raising the limit allows users more flexibility to configure systems based on specific workloads and to get the most advantage from increasingly faster processors. The achievable number of vCPUs per core depends on the workload and specifics of the hardware. For more information see the Performance Best Practices for VMware vSphere 4.0 guide.
  • Enablement of Intel Xeon Processor 3400 Series – Support for the Xeon processor 3400 series has been added. For a complete list of supported third party hardware and devices, see the VMware Compatibility Guide.

Version number 4.0 Update 1 build 208167
Release status Final
Website Manufacturer
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License type Conditions (GNU/BSD/etc.)
bootdriverESXIntelLimitMicrosoftOSPerformanceProcessorSoftwareVMwareWindowsWindows 7Windows ServerXenXeonXeon processor