Can you send me the full logs via PM? Please refrain from sending logs publicly as it may compromise privacy.
Also, seeing the captures, it seems that the array is already on the degraded state before you swapped the drives. There might have been a failing or failed drive that should have been swapped.
Removing the 14TB drive got the array from degraded to dead getting the volume offline. This will need escalation to support to properly remount and recover your data. Note that you might be required to purchase a Data Recovery contract or if it just went out of sync and you are still under a Support contract then they will assist you right away.
Could you have mis-read what was happening? When you swap out a drive, it has to sync, not scrub. Pulling a drive during an active sync is a really bad thing, and probably is what killed your volume. I am confused as to why you would replace a 14TB for a 16TB, as you would have gained no additional space. Was there something that drove you to do that that could be a factor here?
I'm guessing that Marc_V is correct that the array was downgraded before I swapped - I didn't check!
Also realized that I lied about having full backups for that data... there is a portion that I don't have backed up, because it's replaceable for a fee and some PIA, but since the array is working I'm backing up now before making another move.
I'm confident that "resync" did not start with the new 16TB HDD. FWIW, the motivation was to start using all 16Tb drives in the RN316 now that they are available, and use 14TB drives in my OS6 Pro Pioneer. So I had planned on simply moving the 14TB to the Pro Pioneer. From what I saw, all the new big drives are healthy.
I'm curious if I can just swap back in the untouched #1 14TB to get back to where I was two days ago, and then go about fixing the bad drive before moving on?
I'm guessing that Marc_V is correct that the array was downgraded before I swapped - I didn't check!
Your first screen shot shows the volume becoming degraded at 6:32 pm (7 minutes before you removed the 14 TB drive at 6:39 pm). It looks like this happened when you booted the system (since the degraded message comes just a couple of seconds before the "background service started" message.
I'm curious if I can just swap back in the untouched #1 14TB to get back to where I was two days ago, and then go about fixing the bad drive before moving on?
It's worth a try. Power down the NAS first and swap the drive. If the volume mounts, then immediately back up the remaining data. Then figure out why it is degraded.
I'm backing up the remaining data now... which will take a solid day. Unless wisdom arises to dictate otherwise, after backup I'll try replacing the original 14TB and see how it goes.
How about a factory reset, starting with only the one 16TB HDD?
If you want to do a factory reset, then do it with all drives in place - that is much faster than starting with one and then expanding.
But if you decide to start with one drive anyway, you need to start with the smallest drive, not the largest. Otherwise the system either won't let you add the others at all, or you will end up with less capacity.
