standby database AIJ signature does not match master database

  Explanation:  The number of AIJ journal slots ("reserved"), or
  the specific journal allocation sizes, are not identical on both
  the master and standby databases.

  User Action:  Make sure both the master and standby database AIJ
  journal configurations are identical.  Ensure that the AIJ
  journal device "cluster size" is identical on both the master
  and standby databases.