When two of those drives were taken out, obviously the data is gone because the RAID configuration only has 1-drive failure fault tolerance. This means let’s say there are 3 drives in the NAS configured as SHR RAID. Apparently, it is installed on all the drives in the RAID set. I did some testing on a 4-bay Synology NAS to find out where was the OS installed. While everyone seems to be optimistic that they will never need to recover the data, I am pessimistic, expecting any day now, something will fail and I need to recover the data.
Synology drive crashed but healthy how to#
It’s strange and sad that there are so many tutorials on how to set up RAID and backup data, not just in Synology but other NAS providers, but as far as I cannot find, detailed instructions on the reverse process of recovering the data. Can all the member drives in the SHR RAID be simply put into another Synology NAS, same or different model, and the RAID set will automatically recognize itself and resume operations? How about when one drive that was in the NAS but not part of the RAID set where it has been used as its own standalone drive configured as Basic to act as the place for Hyperbackup to put its data? I have been searching for tutorials on the Internet, particular on YouTube, on how to do this, but found none. Quick and easy, and in the case of my Synology 1815+ I didn’t even have to power the NAS down!Ĭan you do a slightly modified tutorial on how to swap a working drive in the RAID set with a higher capacity drive and see how that increases the size of the volume?Īlso what happens when the NAS itself fails and the data on the RAID set needs to be recovered? I know that redundancy RAID is not a backup, but some people will find themselves in that situation.
A much better sight then the Failing state it was in earlier. Finally, click on “ Apply” to confirm and start the repair.Īt this point the pool will perform its repair and the new disk should be reporting as Normal.Click on “ OK” to acknowledge that any data on the new drive will be erased.Confirm the hard drive you’re going to use to repair the Storage Pool and click on “ Next“.In Storage Manager click on “ Storage Pool” on the left and then click on Action > Repair:.This is normal until we start the repair – so lets do that. It may even be beeping, if it hadn’t already. At this point your Synology NAS Storage Pool will likely be in a “Degraded” state.I decided to replace my failing drive with a new Western Digital RED 4TB HDD. Now go to your Synology NAS and remove the failing drive and replace it with a new hard drive.
Here you can see that Drive 5 was failing on my Synology NAS: Open the Synology Storage Manger and click on HDD/SSD on the left. The first step is to identity the hard drive this is failing.How to replace a failed hard drive in your Synology NAS Here is how to easily and very quickly replace a failed hard drive in your Synology NAS. Luckily for me Synology has made drive replacement a breeze. Right now in the middle of this COVID-19 pandemic, one thing I don’t need is my NAS down and the kids and wife unable to watch any shows or movies. Earlier this week I received a notification from my Synology NAS that a hard drive was failing.
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