in HA (not synch), you have primary and secondary nodes/instances.
1)for Daily backup jobs (of databases), should you keep identical jobs on both servers? (if one fails scenario). is this best practice?
2)will below idea help to keep the job only one server/node:
If sys.fn_hadr_backup_is_preferred_replica(@dbname) <> 1 BEGIN <do not backup> ELSE <do backup> END