Installation and Maintenance Guide for Windows 2003 245July 2007 Upgrading from Release 4.0 to 5.0 on the same serverStep 3. Investigate and resolve any tape drivecompatibility issuesIntroductionNote: This section applies only if you are using a tape drive to back up andrestore your database. If you are using a remote directory, you can skip this step.When performing an upgrade, you must create a database backup of youroriginal server and restore it on your Release 5.0 server. You can use either atape drive or a remote directory on a network computer to back up and restoreyour database. If you choose the tape option, before creating the backup, youmust ensure that the tape drive and driver software on your Release 5.0 servercan read the data on the backup tape from the original server. Otherwise, youcannot restore your database and the upgrade fails.Ensuring compatibility for database backup and restoreTo determine whether you have compatibility problems, you must check the tapedrive hardware and the driver software on both the original and reconfiguredservers. You may need to replace the tape drive, or upgrade the driver software,or both. Use the table below to understand the compatibility requirements andwhat your options are to achieve compatibility. Make sure you have resolved thecompatibility issues before you create the backup on the original server.Requirements forcompatibility Options for achieving compatibilityThe driver software on theoriginal server must be ableto write a format that isreadable by the driversoftware on the reconfiguredserver.Check the drivers you plan to use on both the original andreconfigured servers, and make sure they write acompatible format. This may require updating the driveron the original server before backing up the database.Note: If there are incompatibilities, you may receive thefollowing message when trying to restore the database onthe new server:Unable to retrieve backup name.
