Most important part is the IDB Backup, it contains the Catalog-Infos as well as Config-Files which the Schedules are part of. Assuming you use the integrated Scheduler and nothing like Windows-Scheduler.
If the Server is still available you can restore your IDB using omniofflr or omnir Commands, See Adinguide or Help for more details. it uses a Recovery-Textfile to restore IDB even when Catalog is corrupted.
Regular Backup of the Server itself is also recommended, especially if you keep Data there that is not included in the IDB-Backup, for Example Reports, cusomized Scripts, external Programs for LibraryControl, etc. You should exclude the IDB-Directories (db40 or db80) from that Backup to prevent interference with CellManager operation, also the backed up Catalog Files are useless for restore.
