6.5.1

Table Of Contents
5 Calculate the minimum storage size for the new appliance that you are going to deploy during the
upgrade.
a The size of the database (/storage/db) partition of the embedded PostgreSQL database must
be at least twice the size of the Oracle core table returned in Step 2.
b The size of the statistics, events, alarms, and tasks (/storage/seat) partition of the embedded
PostgreSQL database must be at least twice the sum of the sizes of the Oracle events and tasks
and statistics tables returned in Step 3 and Step 4.
For example, if the Oracle core table is 100 MB, the events and tasks table is 1,000 MB, and the
statistics table is 2,000 MB, then the Postgres /storage/db partition must be at least 200 MB and
the /storage/seat partition must be at least 6,000 MB.
Download and Run VMware Migration Assistant on the Source
Update Manager Machine
During the upgrade of a vCenter Server Appliance that uses an external Update Manager, the
Migration Assistant must be running on the source Update Manager machine. This procedure describes
how to download and run the Migration Assistant manually before the upgrade.
The Migration Assistant facilitates the migration of the Update Manager server and database to the new
upgraded vCenter Server Appliance. The Migration Assistant uses port 9123 by default. If port 9123 is
used by another service on your Update Manager machine, the Migration Assistant automatically finds a
different free port to use.
Alternatively, if you plan to upgrade the vCenter Server Appliance by using the CLI installer, you can add
the source.vum section section and run.migration.assistant subsection to your JSON template.
For information about the CLI upgrade configuration parameters, see Upgrade Configuration Parameters.
Prerequisites
n
Download and Mount the vCenter Server Appliance Installer.
n
Log in to the source Update Manager machine as an administrator.
Procedure
1 From the vCenter Server Appliance installer package, copy the migration-assistant directory to
the source Update Manager machine.
2 From the migration-assistant directory, double-click VMware-Migration-Assistant.exe and
the provide the vCenter Single Sign-On administrator password.
3 Leave the Migration Assistant window open until the upgrade of the vCenter Server Appliance
finishes.
When the pre-checks are finished and any errors are addressed, your source Update Manager system is
ready for the upgrade.
Caution Closing the Migration Assistant window causes the upgrade process to stop.
vSphere Upgrade
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