While upgrading Experience Portal on Avaya Enterprise Linux, the Experience Portal database upgrade uses approximately 3.5 times the size of the database backup. For example, a system with a backup of 10 GB requires approximately 35 GB of free space in the /var partition for a successful upgrade.

Enter the command du -sk /var/lib/pgsql/data/base to determine the database size. The system displays the size of the database in kilobytes.

To prevent upgrade failure due to space constraints, monitor and estimate hard disk space usage during the upgrade process. The system retains some of the files used in the upgrade process for backup. However, you may either delete these files, or move these files to a different location during or after the upgrade to maximize the available disk space. The following table describes some of the database files used during upgrade, their locations, their approximate sizes relative to the database backup, and if you can delete or relocate these files safely. Avaya recommends you retain these files in a different partition or hard drive, for backup purpose.