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Superblock read failed, fatal error (SOLVED)

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Hello all!

 

I've got some HDD problems and would like guidance on how to proceed. I've attached syslog and diagnostics from this morning.

 

The situation:

 

I have 2 drives with errors.  I discovered these errors while attempting to set up Nextcloud using spaceinvaderone's YT instructions when I couldn't get nextcloud to start. I know it's unrelated to the drive failing.

 

I have a 9TB array: 1 x 3TB parity and 3 x 3TB drives (screen: 'Array_drives').

 

I took the array offline and remounted in maintenance mode and am currently running Read-check which is 4.1% complete. I also have the extended SMART check running on both drives.

 

I have ordered replacement drives (4 x 6TB WDC WD6002FRYZ) so I will replace and upgrade at the same time once they arrive next week.

 

I'd like to know how to proceed from here?

1) Until the drives arrive, what steps do I take in preparation?

2) What steps do I take to replace and upgrade the drives?

 

My plan is to have 2 x 6TB parity and then 12TB array (2 x 6TB) and a 2 x 3TB cash pool

 

Thank you so much for your advice and I appreciate all you help!

Array_drives.jpg

tower-diagnostics-20201204-0759.zip tower-syslog-20201204-1258.zip

Edited by blakeslade

  • Community Expert

Issues with multiple disks, check/replace cables on disks 2 and 3 then post new diags (after array start in normal mode).

  • Author

On it.

 

No back up cables so I'll order replacements and report back when I have new diags.

  • Author

Cables replaced on disk 2 and 3!

 

Issues with disk 3 now appear to be resolved.

 

disk 2 is still being reported as "disabled", see screen below.

 

I am running the Extended SMART scan on disks 2 and 3.

 

What additional diagnostics should I run for disk 2?

 

My new HDD's arrive this week, what steps do I follow to upgrade from my current setup? What would be an optimal set up for 4 x 6TB drives and 3 x 3TB drives (assuming disk 2 is finished)?

 

Thanks!

Array_updated.jpg

Edited by blakeslade

  • Author

Did some reading (oh oh) here, https://wiki.unraid.net/Troubleshooting#Re-enable_the_drive

 

All SMART tests have passed (took the liberty of doing parity and Disk 1).

- Reallocated_Sector_Ct, Current_Pending_Sector, and UDMA_CRC_Error_Count Raw_Values are '0'

 

So, I've followed the safe instructions to rebuild the array and am waiting for the process to complete.

 

Thanks for your help JorgeB!

tower-diagnostics-20201208-1532.zip

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