vSphere 5.1 U1 released

Yesterday late evening VMware released vSphere 5.1 U1.

What new:

• Reduced downtime upgrade for VMware Tools – After you upgrade to the VMware Tools available with version 5.1, reboots have been reduced or eliminated for subsequent VMware Tools upgrades on Windows.
• Larger virtual machines – Virtual machines can grow two times larger than in any previous release to support even the most advanced applications. Virtual machines can now have up to 64 virtual CPUs (vCPUs) and 1TB of virtual RAM (vRAM).
• vSphere Web Client –The vSphere Web Client is now the core administrative interface for vSphere. This new flexible, robust interface simplifies vSphere control through shortcut navigation, custom tagging, enhanced scalability, and the ability to manage from anywhere with Internet Explorer or Firefox-enabled devices.

vSphere 5.1 U1 is last version which supports below guest OS versions:

• Windows NT
• All 16-bit Windows and DOS releases (Windows 98, Windows 95, Windows 3.1)
• Debian 4.0 and 5.0
• Red Hat Enterprise Linux 2.1
• SUSE Linux Enterprise 8
• SUSE Linux Enterprise 9 prior to SP4
• SUSE Linux Enterprise 10 prior to SP3
• SUSE Linux Enterprise 11 Prior to SP1
• Ubuntu releases 8.04, 8.10, 9.04, 9.10 and 10.10
• All releases of Novell Netware
• All releases of IBM OS/2

[box type=”info”]

• What’s new
• Release notes
• Download [/box]

UPDATE: 05/08/2013

[box type=”warning”]Login issue after updating to vCenter Server 5.1U1 Customers that have large numbers of domain groups may be prevented from logging into vCenter Server 5.1 Update-1 with AD credentials. For more information, see the KB linked below. KB 2050941[/box]