Crashed HDD causes NAS to shut off

[JoyBoy]

Hi there

I have an odd situation where my 2-bay NAS started to shut off (without warning) after about 2 minutes when 2 HDDs are connected. I have managed to identify that one of the drives is in a 'crashed' state ... but I'm wary about replacing it in case I actually have a hardware failure in the NAS itself, or with the power supply.

If I boot with just the 'healthy' drive connected, the NAS functions as normal but with a 'degraded storage pool' fault warning (I am running a RAID storage pool across the 2 drives).

If I boot with just the 'crashed' drive connected, the NAS boots into DSM as normal but I am unable to access any files on it.

Here's the rub. I can't 'deactivate' or 'secure erase' the crashed HDD when I am booted on to it, because the DSM won't let me do that with only one drive present. If I boot on the 'healthy' drive and then push the crashed drive in to connect it, the NAS dies before I can get through the screens to deactivate it.

So I'm a bit stuck. My questions ...

• Is there a way to reformat or erase a 'crashed' disk without another disk present ... can I boot the NAS in to some kind of basic / maintenance mode perhaps?
• Does anyone have any thoughts on why my NAS suddenly dies; does it sound like replacing the crashed HDD will fix it or does it sound more serious?

Thanks!

 

[Deleted member 5784]

Could be a PSU problem with the extra HDD overloading a failing PSU. Maybe look for a new PSU on ebay etc to test.

Focus on solving the 2 HDDs at the same time issue first, then you can sort the degraded array with a rebuild later.

 

[EAZ1964]

I would replace the crashed disk wit a new one and follow the repair process as given on the synology knowledge base.
repairing, formatting a damaged disk is not likely to succeed, and not recommended.
Formatting is only possible in a windows or other pc, but the syno will still recognise it as a previously damaged disk.