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Vmware Vsphere Update 1 Re-released

December 15, 2009

I apologize to readers for having neglected my blog for so long, now I’ll go back writing my posts on a more regular way…
Today I want to tell you about the (mis)adventures of vsphere 4 update1.  
As you know, on November 23 VMware released the first update for its vSphere 4.0 platform. This is a very important patch for all the customers that are implementing VDI because it introduces support for View 4.0, and for Windows Server 2008 R2 and Windows 7 guest OSes. Update 1 also includes a Pre-Upgrade Checker Tool to recognize configuration issues and minimize the downtime during the upgrade, but it was the patch itself causing downtime…
Initially, (see  this KB for more information), “this issues has been reported to occur on HP Proliant systems if Insight Management Agents are already installed and running on the host being upgraded…ESX 4.0 Update 1 has been re-released with changes to avoid this issue. The installation process checks for running agents and stops them before proceeding. The re-released ESX 4.0 Update1 is referred to as ESX 4.0 Update 1a“.
According to the above KB, ESXi hosts aren’t affected by this problem, but if ESXi hosts are being managed with vCenter, there are other issues so that Vmware recommends with another KB to not install the patch in vCenter and wait for an incoming fix. In fact update 1A doesn’t solve this problem.
It seems to me that VMware has had a certain rush to release this update, perhaps because its availability was a prerequisite for the use of View 4. I recall that the release of View 4, scheduled for some time, has been delayed for a little officially due to trivial logistical delays.  According to me, it seems that this hurry was due to the need to respond to competition from Citrix in the VDI market, after the Fort Lauderdale software house released Citrix XenDesktop 4 the last November 16.

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