Backup and restore guide:
https://access.redhat.com/documentation/en-us/red_hat_3scale_api_management/2.7/html/operating_3scale/backup-restore

has 'dump.rb' phrased on several places. According to code snippets following after these mentions it seems to be a typo as it should be rather 'dump.rdb'

Actual: 'dump.rb' used on several places in the guide.
Expected: it should be 'dump.rdb'