VMware have been released VMware vCenter 4.0 Update 2 & VMware vSphere 4.0 Update 2 on 10 June 2010.

Latest version:
vCenter Server 4.0 Update 2 (Build 258672)
vSphere Client 4.0 Update 2 (Build 258672)
ESX 4.0 Update 2 (Build 261974)
VMware Tools (Build 261974)

What ‘s new about VMware vCenter 4.0 Update 2:

• Guest Operating System Customization Improvements: vCenter Server now supports customization of the following guest operating systems:
  • Windows XP Professional SP2 (x64) serviced by Windows Server 2003 SP2
  • SLES 11 (x32 and x64)
  • SLES 10 SP3 (x32 and x64)
  • RHEL 5.5 Server Platform (x32 and x64)
  • RHEL 5.4 Server Platform (x32 and x64)
  • RHEL 4.8 Server Platform (x32 and 64)
  • Debian 5.0 (x32 and x64)
  • Debian 5.0 R1 (x32 and x64)
  • Debian 5.0 R2 (x32 and x64)
• Resolved Issues:In addition, this release delivers a number of bug fixes that have been documented in theResolved Issues section.

What ‘s new about VMware vSPhere 4.0 Update 2:

• Enablement of Fault Tolerance Functionality for Intel Xeon 56xx Series processors— vSphere 4.0 Update 1 supports the Intel Xeon 56xx Series processors without Fault Tolerance. vSphere 4.0 Update 2 enables Fault Tolerance functionality for the Intel Xeon 56xx Series processors.
• Enablement of Fault Tolerance Functionality for Intel i3/i5 Clarkdale Series and Intel Xeon 34xx Clarkdale Series processors— vSphere 4.0 Update 1 supports the Intel i3/i5 Clarkdale Series and Intel Xeon 34xx Clarkdale Series processors without Fault Tolerance. vSphere 4.0 Update 2 enables Fault Tolerance functionality for the Intel i3/i5 Clarkdale Series and Intel Xeon 34xx Clarkdale Series processors.
• Enablement of IOMMU Functionality for AMD Opteron 61xx and 41xx Series processors— vSphere 4.0 Update 1 supports the AMD Opteron 61xx and 41xx Series processors without input/output memory management unit (IOMMU). vSphere 4.0 Update 2 enables IOMMU functionality for the AMD Opteron 61xx and 41xx Series processors.
• Enhancement of the esxtop/resxtop utility— vSphere 4.0 Update 2 includes an enhancement of the performance monitoring utilities, esxtop and resxtop. The esxtop/resxtop utilities now provide visibility into the performance of NFS datastores in that they display the following statistics for NFS datastores: Reads/s, writes/s, MBreads/s,MBwrtn/s, cmds/s, GAVG/s(guest latency).
• Additional Guest Operating System Support— ESX/ESXi 4.0 Update 2 adds support for Ubuntu 10.04. For a complete list of supported guest operating systems with this release, see the VMware Compatibility Guide.

Check out VMware vCenter 4 Update 2 Release Notes here and VMware vSphere Update 2 Release Notes here.

In order to upgrade or download, please refer to VMware download page here.

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1. Apply VMware vSphere 4 Update 1 Patches
2. Running Chrome OS on vSphere Update 1
3. SQL Native client on vCenter 4 with Windows 2008 64 bits

VMware vSphere 4 available for download now!

ESX 4.0 | 21 MAY 2009 | Build 164009
vCenter Server 4.0 | 21 MAY 2009 | Build 162902
VMware vSphere 4 release notes

Check out official link at http://www.vmware.com/download/vsphere/

Related posts:

1. Apply VMware vSphere 4 Update 1 Patches
2. Running Chrome OS on vSphere Update 1
3. VMware vSphere 4 Performance Troubleshooting Guide

Citrix Systems commissioned Tolly to evaluate the performance of Citrix XenApp when running on Citrix XenServer 5 and compare that with XenApp running on VMware ESX 3.5u3.

Testing focused on system scalability and user quality-of-experience. This test report was approved for publication by VMware. The VMware End User License Agreement (EULA) requires such approval.

The testing was conducted in accordance with Tolly Common RFP #1101, Virtual Server Performance. That document is available for license and you can find more information about it on the Tolly Common RFP website.

Download the free Citrix/VMware report as below:

Register and Download!

Related posts:

1. VMware vSphere 4 Performance Troubleshooting Guide
2. Cisco Nexus 1000V

Get a free license for VMware ESXi and build virtual machines in minutes with this easy-to-deploy, OS-independent hypervisor.

Check out more details about VMware ESXi free edition here.

Download VMware workstation, VMware ESX 3.5 and ESXi and start your testing now!

Look at the video.


An video uploaded by DaviD Davis from TrainSignal.

Related posts:

1. VMware Workstation 7 Official Release
2. Apply VMware vSphere 4 Update 1 Patches

Basically the new version come with 2.6.18 kernel version of Linux as the host system.

The Xen 3.3.0 features including:

• Power management (P & C states) in the hypervisor
• HVM emulation domains (qemu-on-minios) for better scalability, performance and security
• PVGrub: boot PV kernels using real GRUB inside the PV domain
• Better PV performance: domain lock removed from pagetable-update paths
• Shadow3: optimisations to make this the best shadow pagetable algorithm yet, making HVM performance better than ever
• Hardware Assisted Paging enhancements: 2MB page support for better TLB locality
• CPUID feature levelling: allows safe domain migration across systems with different CPU models
• PVSCSI drivers for SCSI access direct into PV guests
• HVM framebuffer optimisations: scan for framebuffer updates more efficiently
• Device passthrough enhancements
• Full x86 real-mode emulation for HVM guests on Intel VT: supports a much wider range of legacy guest OSes
• New qemu merge with upstream development
• Many other changes in both x86 and IA64 ports

Download Xen 3.3 datasheet

Download Xen 3.3.0 official source distribution tarball

Download Linux 2.6.18 with Xen 3.3.0 support source tarball