Configure the post-Oracle deployment policy

Use RMAN to back up... the command contains... crontab, which you should have.

-- Archive is returned once every week ,?

The archiving process automatically keeps running.
-- Archive if it is full, right?

What you need to do is to back up the data every week and move the generated archived logs to other media to prevent disk usage.

Nonono ···
-- Daily Incremental Backup: weekly full backup?

This is the backup policy. If the data volume is large

-- With this backup policy, do I need to cut the full backup files to other places every week to prevent the disk from being fully written?

And archive files. Separate backup files from archive files

-- Can Backup files and archive files be used to restore databases when database problems occur in the future?

Well

-- Can I cut the archive log file to another disk as long as it is generated?

No,The archive file can restore the database from the backup file to the time point when the database crashes. To prevent this week's problems, archive should be stored this week.

-- It means that the most important thing to restore the database is to back up the files. Even if there is no backup file, it cannot be recovered even if there is an archive file?

Backup is the benchmark. If you have a full archive file that can be recovered from the creation of the data file, it will be slower.