May 8, 20242 yr @itimpi thank you for your help. And thank you for pointing me to the correct chapter in the documentation. I have successfully Acknowledged the CRC count. Rebuilding a drive onto itself manuals say that at step 1 you have to stop the array. I clicked on a button to stop it. Now it's been stopping it for 20 minutes and I think this should not take that long or?
May 8, 20242 yr Stopping array got stuck... I dont know how to proceed and I am afraid I'll lose everything. Dont have knowledge for this kind of problems. Anyone?
May 9, 20242 yr Community Expert Array usually won't stop if there's something using a mount point, make sure no SSH sessions are open to one, if you can't find the reason type reboot in the CLI, if it doesn't reboot after 5 minutes, you will need to force it.
August 10, 20241 yr Had to really search the documentation to find the link, which had changed since the first help link, here: https://docs.unraid.net/unraid-os/manual/storage-management/#rebuilding-a-drive-onto-itself thanks you @itimpi for pointing me to the walkthrough!
February 6, 20251 yr Good morning all, How can you tell if the disk is bad on the SMART Test? I have attached mine to see if anyone know if the disk is bad or it is just something that failed on the backbone of my NAS. All other disk are fine. Any help is greatly appreciated. I don't know how to read hard drives failures. ST12000VN0007-2GS116_ZJV0FC90-20250206-0758.txt
February 6, 20251 yr Community Expert 1 hour ago, Tucubanito07 said: How can you tell if the disk is bad on the SMART Test? Run an extended SMART test, but SMART is showing some issues, including a lot of reallocated sctors, disk was also run pretty hot in the past.
February 8, 20251 yr @JorgeB here you go. This took a very long time. It also says Completed: Unknown Failure. So, did it finish or it didn't? ST12000VN0007-2GS116_ZJV0FC90-20250208-1318.txt
February 8, 20251 yr I followed the instructions on the rebuilding a drive onto itself. It will take at least 4 days. Geez luis that is a long time.
February 9, 20251 yr Community Expert Since the SMART test failed, I would recommend replacing the disk.
February 10, 20251 yr 13 hours ago, JorgeB said: Since the SMART test failed, I would recommend replacing the disk. Okay thank you so much for your help.
February 18, 20251 yr Hi, I have similar problem. Server was running as a normal when I decided to clean up hdd a little. First unusual thing happened when I deleted 2 files 2 .fuse_hidden[nnnnn...] files being created. It happened to me first time. It was impossible to delete them via samba share so I used console to do it with success (1 was on disk4 and 1 on cache SSD). After that I started copying files between folders (from CACHE SSD to Disk5). Everything looked fine. Then I looked on WebGUI and I noticed Disk 5 is disabled. contents emulated. It happened to me first time as well. All disks been green before I started working on files. When copying was finished I shutdown server and turn in back again. Disk5 still disabled so I shutdown system again I disconnected sata cables from all disk (2x (SAS to 4xSATA)) (I did not know which is which). I turn system back on and Disk5 still disabled and also I started getting CRC errors on my VMS SSD disk (pool device. not the one mentioned above) which I use only for appdata and VMS (vms are bearly used). CRC Error count is around 230 now on this disk. So I shutdown the system I played a little with cables and start the system again. CRC errors are not increasing now. Disk5 is still disabled. VMS SSD is only 2-3 years old and had few CRC errors before reported like 1-2 years ago. Disk5 is showing 4 CRC Errors now. What I should to do next? I started extended smart test on Disk5. It is running 1hour and stuck on 10%. I will leave it just now. Disk5 is RED WD disk but it was empty for long time. Unraid started using it just maybe a week ago when another disk become full. Should I order new cables? Disk5 and VMS SSD are on the same SAS cable. I want to start "Rebuilding a drive onto itself" but I will wait for smart test first. I have attached diagnostic file from flash drive. zion-diagnostics-20250218-2040.zip
February 19, 20251 yr Community Expert Diags are after rebooting so we can't see what happened, but SMART looks fines and there are recent CRC errors, so replace the SATA cable and try again.
February 19, 20251 yr Hi, I did not think about that. I should save logs first before I turn off computer. Smart test almost finished. 90%. New cable is ordered. I will come back later.
February 19, 20251 yr Smart test finished without errors. I will wait now for new cable and then I will start "Rebuilding a drive onto itself" but to be honest I am scared. If rebuilt will go wrong what can happen? Can I loose data from disabled Disk5 or entire array can be messed up and I will loose all data? What can go wrong?
February 19, 20251 yr Community Expert If the rebuild fails post new diags, but it should not make things worse, just make sure you update to 6.12.15 or 7.0.0 first, since previous releases have a bug that can disable an additional disk sometimes.
March 8, 20251 yr Hi, Thank for help. I have updated first to 6.12.15 and rebuild went well. It took 16 hours to finish.
April 16Apr 16 On 8/10/2024 at 4:46 PM, Techspin said:Had to really search the documentation to find the link, which had changed since the first help link, here:https://docs.unraid.net/unraid-os/manual/storage-management/#rebuilding-a-drive-onto-itselfthanks you @itimpi for pointing me to the walkthrough!Since it appears that the subheading may have been changed since this was posted, here's the current link: https://docs.unraid.net/unraid-os/using-unraid-to/manage-storage/array/replacing-disks-in-array/#re-enabling-a-disabled-disk-rebuilding-onto-itself Edited April 16Apr 16 by batscarfacehypernova
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