[otrs] Backup/Restore

Isnt the backup/restore script supposed to back the entire OTRS installation up? I recently had a server crash and had to rebuild my OTRS installation from scratch. When I restored the the OTRS installation using the resotre.pl script, the only tables that got restored was the article tables. All of the other data is gone i.e users, queues etc. Did I do something wrong or is backup.pl not meant to perform a complete OTRS system backup? Any help is appreciated