Hope someone out there can help. Its been awhile since I needed community support for my unit. When I recently realized the unit could not be accessed, i soft reset and the interface shows "No Volume Exists". No shares, etc. Tried re-boot, shut down, etc., nothing. What next?
Many thanks!
Model: RNDP600U|ReadyNAS Ultra 6 Plus Chassis only
First off, do you have a 516 (native OS6 unit) or Ultra6 (originally ran OS4.2.x, but you may have updated to OS6, so let us know which it is)? Your messages states both.
What does RAIDar show? Do you see any progress messages before you get to "no volumes"?
Thanks for checking in. Sorry about the confusion, it is a 516, native OS6. I originally had an Ultra6 that was replaced by the manufacturer with the newer version.
I did originally see a message in RAIDar about needing to remove Disks #1,2,3 (all my disks, 2x4TB, 1x2TB if I remember correctly, WD40EFRX) but it no longer appears. It asked to update firmware for a hotfix, which I did, but it couldn't communicate with the hardware and still asks.to.uodaye to 6.10.6. It seems the message may have disappeared since.
Now I'm able to see that messaage again, "Remove Inactive Volumes to use the disk. #1,2,3".
The volumes show 0 space, yet also no shares, etc. I'm at a complete loss. Tempted to remove and all three drives and try to re-index? But I wont do anything without advice from you experts out there. Hoping to recover all that data. I do have a backup USB-connected drive, but only a portion of my data is there.
DO NOT remove or insert the drives with power on or make any other attempt to re-sync without specific instructions. It can only make matters worse.
Your volume most likely has BTRFS errors that the system cannot resolve. That sometimes "just happens", and sometimes is due to one or more drives being faulty. Before going any further, it's best to test the drives. The best way to do that is to use a PC and WD Lifeguard (assuming all WD drives), connecting each drive to the PC internally or via a USB dock. The NAS Built-in drive test from the boot menu isn't as thorough, but doesn't require extra hardware.
Once you find out the health of the drives, you may be able to boot with just two drives and it'll be fine, though the volume will be "degraded" (not redundent). If not, @StephenB can help you try to recover at least the rest of the data if you are comfortable using SSH and the Linux command line. If you are not, then Netgear support is your best solution.
Thanks for your guidance. I download WD Lifeguard on the PC, connected each drive via USB, ran smart test and extended test and all 3 drives pass all tests. What would be the next step to help get me back up and running?
@wolfie111 wrote: I download WD Lifeguard on the PC, connected each drive via USB, ran smart test and extended test and all 3 drives pass all tests. What would be the next step to help get me back up and running?
You could also wait a little bit, and see if @rn_enthusiast chimes in. He has sometimes analyzed logs, and given specific advice on how to repair this yourself. That would require use of ssh, and if you have no experience with the linux command line I don't recommend attempting to learn it now.
That support link seems to be an incredibly expensive and perhaps risky investment for the average consumer. Is there someway you or someone else on these forums (@rn_enthusiast was mentioned but I havent heard from him) could help out here, at least to understand the problem and perhaps get me started on trying to recover my data? I'm at a complete loss. I had some experience with SSH some several years ago, though I was guided through that. I'm, willing to give it a shot given the alternatives.
You wanna throw me the logs @wolfie111 ? I can take a look at them for you.
When you access the NAS Admin web page, go to: System > Logs and here you will see a button called "Download Logs" on the right-hand side. Click this and it will download a zip file with all the NAS logs inside.
Take this zip file and upload to your Dropbox, Google Drive or similar and then make a link where I can download the log zip file. PM me this link please. Then I will have a look to see what is going on.
That would mean the NAS normally assembles md127 and md126, and the BTRFS filesystem can stick these two raid instances together into one data volume. But I don't see any attempt from the NAS to assemble md126 as one would expected given how the disks are partitioned. But it explains why the BTRFS logs are complaining about a missing raid device.
I don't have a good explanation as to why the NAS isn't attempting to assemble the missing raid. In a case like this, one should examine the raid super blocks to determine what is going on with missing raid. It requires some expertise and Netgear Level 3 support should look at this, realistically. If the data matters, I would suggest to contact then regarding a data recovery contract. It is not easily fixed on your own and certainly goes beyond forum based assistance.
