just for personal interests, it is no bug deal to setup a linux based system with drbd/heartbeat system which can handle this. afaik the open-e are based up on well known opensource software, can the firmware be modified/rebuild by us?
Possibly - but we have so many requests - please send this to support@open-e.com so our engineers can decide what time frame or if this is already in plan. Please do not expect this to be done quickly as there are so many factors involved testing, QA...... and with other projects.