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VMware vSphere 5.5 Cookbook by Abhilash G B

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Carrying out pre-upgrade checks

vCenter Server 5.5 is a 64-bit software and requires a 64-bit Windows operating system to be installed. It also requires a 64-bit ODBC DSN to be created in order to connect to the database. Note that, with this new release of vCenter, VMware has removed support for Windows 2003 operating systems.

Here is a list of supported operating systems vCenter 5.5 can be hosted on:

  • Windows Server 2008 x64 Service Pack 2
  • Windows Server 2008 x64 R2 Service Pack 1
  • Windows Server 2008 x64 R2 Service Pack 2
  • Windows Server 2012 x64

If your current vCenter Server is hosted on a Windows version not supported by vCenter 5.5, then the upgrade is not possible. You will have to perform a fresh install and point it to the existing database for ...

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