Sun GlassFish Enterprise Server v2.1.1 Upgrade Guide

Upgrade Verification

An upgrade log records the upgrade activity. The upgrade log file is named as the upgrade.log and is created in the domains root where the upgrade is carried out.

After you have upgrade a domain, you can see a file whose name is in the following format: upgradedTo<releasenumber>. For example, a domain that has been upgraded to 9.1 Update 1 will have a file called upgradeTo91 in its config folder.