Red Hat Bugzilla – Bug 1317393
[RFE] Can back up and restore a_Self-Hosted_Engine_Environment while both hosts are not placed into maintenance mode.
Last modified: 2016-04-25 09:33:45 EDT
To do a backup of the hosted engine it is not required to put the hosts on maintenance mode, you only need to put the hosted engine HA service to maintenance mode via the UI\API and then do the backup. This is so the service will not reboot the host while doing the backup.
Does this resolve your issue?
Based on the comments on the case, closing this bug.