.. _backup-restore-modular-arch:

Backup and Restore in a Modular Architecture
---------------------------------------------

.. _21.1|VOSS-837|EKB-8463:
   
Backups that were made *before* topology migration to a modular
architecture can not be restored to the topology *after* migration.
Manual intervention is required to restore.

A new modular architecture backup must be created immediately
after topology migration. This backup will be on the highest priority
secondary db node.

.. important::

   Backups for an Application and Web Proxy type node are not required.
   A backup created on the secondary database node will include all the relevant data,
   excluding the web certificates.

   After a restore is performed by following the documented process: :ref:`restore-a-backup`,
   the web certificates need to be reinstalled on each of the Application and Web Proxy nodes.
   For commands, see: :ref:`web-certificate-commands`. These certificates should already
   be stored in a safe location after initially installed,
   therefore do not require inclusion in the backups.