6.0.2

vCenter Server for Windows Pre-Upgrade Checker
When you upgrade vCenter Server and the Platform Services Controller, the installer does a pre-upgrade
check, for example, to verify that enough space is available on the virtual machine or physical server where
you are upgrading vCenter Server, and veries that the external database, if any, can be successfully
accessed.
When you deploy vCenter Server with an embedded Platform Services Controller, or an external
Platform Services Controller, vCenter Single Sign-On is installed as part of the Platform Services Controller.
At the time of upgrade, the installer provides you with the option to join an existing vCenter Single Sign-On
server domain. When you provide the information about the other vCenter Single Sign-On service, the
installer uses the administrator account to check the host name and password, to verify that the details of
the vCenter Single Sign-On server you provided can be authenticated before proceeding with the upgrade
process.
The pre-upgrade checker performs checks for the following aspects of the environment:
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Windows version
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Minimum processor requirements
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Minimum memory requirements
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Minimum disk space requirements
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Permissions on the selected install and data directory
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Internal and external port availability
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External database version
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External database connectivity
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Administrator privileges on the Windows machine
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Any credentials that you enter
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vCenter Server 5.x services
For information about the minimum storage requirements, see “vCenter Server for Windows Storage
Requirements,” on page 35. For information about the minimum hardware requirements, see “vCenter
Server for Windows Hardware Requirements,” on page 36.
vCenter Server for Windows Storage Requirements
When you upgrade vCenter Server, your system must meet minimum storage requirements.
The storage requirements per folder depend on the vCenter Server 5.x services deployed on the machine, the
upgrade deployment model, and the size of your vSphere 5.x inventory. The installer dynamically calculates
the storage requirement during the upgrade, and veries that the machine has sucient free disk space
before proceeding with the upgrade.
During installation, you can select a folder other than the default C:\Program Files\VMware folder to install
vCenter Server and the Platform Services Controller. You can also select a folder other than the default
C:\ProgramData\VMware\vCenterServer\ in which to store data. The following table lists the absolute
minimum disk space requirements for the dierent deployment models. The requirements change
depending on the installed vCenter Server 5.x services and the vSphere 5.x inventory size.
Chapter 2 Upgrade Requirements
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