The following are direct instance properties. They can’t be part of a profile:
Name is the instance name and can only be changed by renaming the instance.
Valid instance names must:
Be between 1 and 63 characters long
Be made up exclusively of letters, numbers and dashes from the ASCII table
Not start with a digit or a dash
Not end with a dash
This requirement is so that the instance name may properly be used in DNS records, on the file system, in various security profiles as well as the host name of the instance itself.