The Symantec Endpoint Protection Manager installation requires a minimum amount of available disk space. Make sure that any current servers or new hardware meet the minimum hardware requirements. However, additional available disk space may be needed during an upgrade to allow for the creation of temporary files.
Make a backup of the database before making configuration changes.
Table: Tasks to increase disk space on the management server
Change the LiveUpdate settings to reduce space requirements
Go to Admin > Servers and right-click Local Site. Select Edit Site Properties.
On the LiveUpdate tab, uncheck Store client packages unzipped to provide better network performance for upgrades.
This option was removed in version 12.1.5 because content storage on the management server is improved. You should still set it appropriately for an upgrade from a version earlier than 12.1.5, however.
On the LiveUpdate tab, reduce the number of content revisions to keep. For an upgrade, you can lower the setting to 10. Allow time for Symantec Endpoint Protection Manager to purge the extra revisions. However, for versions later than 12.1.5, the reduction of revision numbers may trigger full update downloads from the clients that check in. An increase in these full update requests may negatively affect network performance.
The default values and recommended values for content storage have also changed as of version 12.1.5. To upgrade, however, you need to work with the values that are appropriate for the version from which you upgrade.
Returning the revision setting to its previous value after the upgrade completes is not necessary. Improvements to the way Symantec Endpoint Protection Manager stores and manages content means that a larger number of revisions takes up less disk space than in earlier versions.
Defragment the hard drive after removing programs and files.
Use an external database
If the Symantec Endpoint Protection database resides on the same computer with Symantec Endpoint Protection Manager, consider installing a Microsoft SQL Server database on another computer. Significant disk space is saved and in most cases, performance is improved.
Make sure that the client computers also have enough disk space before an upgrade. Check the system requirements and as needed, remove unnecessary programs and files, and then defragment the client computer hard drive.