I have a TS-509 and a TS-859. This is a generalization but for the past couple of years every time a bad restart happens for whatever reason the array comes up unmounted. Yes, I can recover it every time (except once). However this NEVER use to happen. I don't know if it's the firmware, if there's been a change to the way RAID works, or what the issue is...But the fact that I am having this issue on both NAS devices makes me wonder.
I'm also curious how much testing goes into archived QNAP devices when new firmware is released? Don't get me wrong, I'm very grateful that I get the benefit of the latest software modifications. It's wonderful...However I'm wondering if this is cause for concern if archived (retired) devices are not being properly tested? I would rather go back to a stable firmware version where all of this isn't a problem for at least one of my NAS boxes.
Anyone else (long time users of Qnap NAS boxes) experiencing similar issues? I don't mean to complain because Qnap support has always been exemplary. However if someone has more precise information instead of my obvious generalizations I would love to hear from them in this thread.