ESX 4 U2, ESXi U2 and vCenter U2 Released.
ปล่อยให้ Download แล้ว ตั้งแต่วันที่ 10 June 2010 ค่ะ

สำหรับ USB Device version นี้ก็ยังไม่ได้แก้ปัญหาเรื่องนี้ค่ะ
USB Pass-Through for Virtual Machines
Although you can add USB controllers to virtual machines, attaching USB devices is not supported.

There are new functionalities and a bug fixes:
New features vCenter Server U2:
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 4.8, 5.4 and 5.5  Server Platform (x32 and x64)
Debian 5.0 with Debian 5.0 R1 and R2 (x32 and x64)

Resolved issues:
Storage vMotion fails even if the destination datastore has sufficient disk space.
VirtualCenter stops responding while retrieving historical events.
Selecting the Power Management option of a virtual machine that has five or more network adapters results in an error.
vCenter Server 4.0 cannot manage a ESX 3.x host if the VirtualCenter 2.5.x license server FQDN has a non-standard suffix.
Virtual machine starts on the host it was registered on, even if it is scheduled to start on another host.

ESX 4 and ESXi 4 new features:
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.
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).

For more info:
VMware vCenter Server 4.0 Update 2 Release Notes
http://www.vmware.com/support/vsphere4/doc/vsp_vc40_u2_rel_notes.html

VMware ESX 4.0 Update 2 Release Notes
http://www.vmware.com/support/vsphere4/doc/vsp_esx40_u2_rel_notes.html

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