6.0.2

Table Of Contents
Before Upgrading vCenter Server 3
Ensure that your system is prepared for vCenter Server upgrade by verifying compatibility and completing
any necessary database, networking, or other preparation tasks.
This chapter includes the following topics:
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“Verify Basic Compatibility Before Upgrading vCenter Server,” on page 53
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“Preparing vCenter Server Databases,” on page 54
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“Verify Network Prerequisites Before Upgrading,” on page 62
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“Verify Load Balancer Before Upgrading vCenter Server,” on page 63
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“Prepare ESXi Hosts for vCenter Server Upgrade,” on page 64
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“Verify Preparations Are Complete for Upgrading vCenter Server,” on page 66
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“Required Information for Upgrading vCenter Server for Windows,” on page 69
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“Required Information for Upgrading the vCenter Server Appliance,” on page 69
Verify Basic Compatibility Before Upgrading vCenter Server
Verify that all components meet basic compatibility requirements before upgrading vCenter Server.
Upgrading the operating system of a vCenter Single Sign-On 5.1 machine from Windows 2003 to Windows
2008 to meet the operating system requirements may result in symptoms similar to knowledge base article
2036170.
Prerequisites
Verify that your system meets the hardware and software requirements. See “vCenter Server for Windows
Requirements,” on page 34 and “vCenter Server Appliance Requirements,” on page 37
If you have solutions or plug-ins, check the VMware Product Interoperability Matrix. See
hp://www.vmware.com/resources/compatibility/sim/interop_matrix.php
Procedure
1 The installation path of the previous version of vCenter Server must be compatible with the installation
requirements for Microsoft Active Directory Application Mode (ADAM/AD LDS).
The installation path cannot contain any of the following characters: non-ASCII characters, commas (,),
periods (.), exclamation marks (!), pound signs (#), at signs (@), or percentage signs (%).
If your previous version of vCenter Server does not meet this requirement, you must perform a fresh
installation of vCenter Server.
VMware, Inc.
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