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Monthly Archives December 2012

White Paper Released: Replacing Default vCenter 5.1 and ESXi 5.1 Certificates

VMware just released a paper outlining as a step by step guide on how to replace the default vCenter and ESXi with version 5.1 to a new secure certificate either using a CA or may be your own certificate server. Certificate checking is enabled by default and help encrypt the traffic if you would like to run the environment via remote sessions. using a trusted certificate you will be able to avoid the middle-man attacks.

the article is available in the following link

ESXi 5.0 Update 2 Just released.

VMware has just released Update 2 for vSphere 5.0 which contains a few minor new features and of course bug fixes to both ESXi 5.0 Update 2 and vCenter Server 5.0 Update 2.

Main New features

Support for additional guest operating systems – This release adds support for Solaris 11, Solaris 11.1 and Mac OS X Server Lion 10.7.5 guest operating systems.

Resolved Issues

  • The time out option does not work when you re-enable the ESXi Shell and SSH
    • If you set a non-zero time out value for SSH & ESXi Shell, the SSH & ESXi Shell gets disabled after reaching the time out value. But, if you re-enable SSH or ESXi Shell without changing the timeout setting, the SSH & ESXi Shell does not timeout.
  • DNS might not get configured on hosts installed using scripts that specifies using DHCP
    • If you install ESXi host using a script that specifies the host to obtain the network settings from DHCP, after booting, the host is not configured with a DNS. The DNS setting is set to manual with no address specified.
  • Reinstallation of ESXi 5.0 does not remove the Datastore label of the local VMFS of an earlier installation
    • Re-installation of ESXi 5.0 with an existing local VMFS volume retains the Datastore label even after the user chooses the overwrite datastore option to overwrite the VMFS volume.


More information is available in the release note here.

ALERT: Upgrading to View Agent 5.1.2 can result in performance issues

VMware has became aware of an issue that is happening in VDI environemnt in manual pools using physical desktops the View Connection Broker will repeatedly attempt to configure the agent which can cause a significant performance impact particularly in large scale environments. . If you do not use VMware View to access Physical Machine based desktops, no workaround is required.

Symptoms may include:

  • In environments with multiple physical machines, significant slowdowns occur and you may see stability issues.
  • When attempting to use the View 5.1.2 Agent on a physical machine, the system slows down.

More Information  is available on the following KB Link 2041977


Support Alert: Please don’t Upgrade your vCenter 5.0 or 5.1 Oracle database Patch 10 or Later.

Today VMware support raised a high alert to customers not to upgrade their vCenter oracle databases to patch 10 or later since it causes some issue with vCenter server specially when creating virtual machines. for example when creating a new virtual machine you get the following error.

An internal error occurred in the vSphere Client.
Details: Object reference not set to an instance of an object

VMware is currently reviewing the issue and there is no available workaround. if you have already upgraded, you will need to revert back to the old oracle binaries and database recovery may be required


More information on  this is available in VMware KB Article 2039874


Keep reviewing the KB for updated information.

Install VMware vCloud Director on a Notebook

This document details installing VCD 5.1 on an i7 8GB Notebook. This is the first draft and will change as feedback comes in from people using it. Feel free to add your feedback in the comments below. This is a small environment to familiarize yourself with the products from VMware. Install VMware vCloud Director on a Notebook