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628x lost all volumes, jiggling power button "restored" them
We have a 628x with eight 10T drives.. Two nights ago, after working in Excel files stored on it, I encountered slowness, then my PC could not see any of the volumes mapped as network drives. To reboot the NAS, I had to hold the power button down - the front display did not display in response to tapping the power button, and tapping the power button would not lead to the second tap going into the normal shutdown mode. When it rebooted, it report it had no volumes (I could access the interface through a browser - all drives were red colored, although all systems and drives were reported as healthy). I left it off the past two days. Today I removed all drives and used compressed air today in an attempt to blow out any dust. I reinstalled the drives (into their original bays), then rebooted my entire network before powering the NAS up. No change - same no volumes message, no access to files.
After it was on (and no files were accessible but the interface was) for several hours, I decided to power it off. I tapped the power button, kind of jiggling it (without interrupting the power). The front display flashed on then off, and I jiggled the power button again (without interrupting the power) - the front display came on, and this time looked normal. I tried to access the volumes from my PC but no luck, so I powered the NAS down, this time it bein able to do the normal shut down. I powered it back up, and the volumes reappeared and (near as I can tell) all files there.
Prior to a few days ago, access to the NAS via ReadyCloud started having problems. I could drill down two or three layers of folders, but then nothing. Last August, the NAS reported that the drive in bay 1 was not mounted, but it was (and no health issues were being reported). I removed and reinstalled the same drive, and it was OK for a while, then the problem returned. I replaced the drive and it mounted and resynced.
Can anyone give me an idea of what happened, what may be wrong and how to fix it?
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First things first - if you don't have a backup for your data, you should definitely put a backup plan in place.
ERAJ wrote:
I tapped the power button, kind of jiggling it (without interrupting the power). The front display flashed on then off, and I jiggled the power button again (without interrupting the power) - the front display came on, and this time looked normal.
Check the preferred shutdown instructions on page 146 here:
Is this what you were seeing?
ERAJ wrote:
We have a 628x with eight 10T drives.. Two nights ago, after working in Excel files stored on it, I encountered slowness, then my PC could not see any of the volumes mapped as network drives.
...
I tried to access the volumes from my PC but no luck, so I powered the NAS down, this time it being able to do the normal shut down. I powered it back up, and the volumes reappeared and (near as I can tell) all files there.
Hard to say what happened here, or why it recovered after the second boot. There could be some clues in the log zip file, so I suggest downloading that. The info there is hard to interpret, but you could look for errors in system.log, kernel.log, and systemd-journal.log around the time of the slowness.
ERAJ wrote:
Prior to a few days ago, access to the NAS via ReadyCloud started having problems.
Hopefully you are aware that ReadyCloud is being discontinued next month.
ERAJ wrote:
Last August, the NAS reported that the drive in bay 1 was not mounted, but it was (and no health issues were being reported). I removed and reinstalled the same drive, and it was OK for a while, then the problem returned. I replaced the drive and it mounted and resynced.
While the disk health info the NAS reports can be helpful, it can also be misleading. There are times when a failing disk is reported as healthy. There is a disk test function on the volume setting wheel in the admin web ui - you might want to run that. It will take a while (hours to days, depending on disk size).
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