Specifications

Level One: Protege GX Installer Study Guide | August 2013 379
10. Click OK to start the restore process. Progress is shown as the database is restored.
 If the progress wheel doesn't increase, an error message will eventually be displayed. This is usually caused
by an open connection to the database, which most occurs when the Protege GX Services haven't been
stopped.
 If the database restored successfully and the database version is the same as the software installed, then
the services can now be restarted.
 If the ProtegeGX Data service fails to start, there is either a database / software version mismatch, or the
restored database is corrupt.
 If the database is corrupt, then your only option is to restore the backup set taken at the beginning of this
exercise.
Database Versions
The software version number is broken into 4 sections:
Major
Release
Minor
Release
Database
Version
Software
Build

3 1 48 14

The Database version section of this number is extremely important. When this number changes, the structure
of the database has changed. If this number doesn't match the version of the database set currently installed,
the Protege GX Data Service cannot start.
Database Software
48 < 49
*
48 = 48
49 > 48
 It is not possible to restore a newer database to an older software version.
 If the version numbers match, the restore should be successful and the Data Service should start.
 If the database being restored is older than the software version, then the installation setup file must be
re-run. This will upgrade the structure of the restored database to match the software.
This is why it is good practice to record the database version in the backup file name.