In this blog post, you’ll learn more about the Sybase Error Cannot assign automatic mirror server parent and the reason for receiving this error
Sybase SQL Error Message
Cannot assign automatic mirror server parent
Reason for this Error
A CREATE MIRROR SERVER or ALTER MIRROR SERVER statement requested that a mirror parent be automatically assigned, but a parent server could not be found. The auto_add_server option may not be set, or might be set to an invalid server name.