Is your current SM running on VM? If so:
run an migrate export on the SMS
on the old SMS server run cpstop
then run cpconfig and disable startup of the product
change the IP to a free IP
install a new VM with R80.30 (skip R80.20 when coming from R77.30)
before you run the First Time Wizard setup the IP of your old SMS on the new server
run the FTW.
copy the export file from the old SMS on it's new IP
Import the exported file.
Test and push every gateway at least 2 times, be aware of some differences in handling HTTPS sites, some will now fail
The improvements made in the import utilities of R80.30 really are worth the skipping of R80.10 and .20
Regards, Maarten