Hi Moondefer and all,
I have very similar situation to you, that is a 4 disk SHR array.
I have been reading and re-reading your notes and plan to do what you did, test with a new disk before I upgrade my real system.
Just to explain, I had:
DS3617xs which was updated by mistake to DSM 6.2.4-25556 and after that no longer could connect to the DSM.
Having been advised to upgrade to DS3622xs+, I want to go to DSM 7.2-64570 Update 3
Can you please let me know of the key points to take care of when updating my real system?
By the way, I am planning to use DSM 7.2-64570 Update 3. Any issues with that?
Many thanks