Catalog Job behaviour after reboot ? resume possible ?

Hi ,

we have an older BE instance V 20.4
long story short - we lost the catalog after a Server crash (no catalog Backups :-(  )- and so we have to rescan (catalog) the jobs details from a Dell Datadomain Storage.

The job runs about a few days now - trillions of mini files deduplicated on a Datadomain  - make this whole process a pain in the A**

My question is :

I have to reboot the Backup Exec Server  now.

what happens if i  stop the catalog job and start a new one after the reboot ?
Does the catalog start at the point where it ended ? or does it start the whole catalog process from the beginning ?

Thank you!