Parity sync issue

[tlo]

Hello everyone.

I am a new Unraid user and have just set up my first Unraid system.

For my array, I have set up a 4TB HDD for data and a 4TB HDD as parity.

For additional security, I purchased a 12TB HDD and would now like to set it up as a second parity.

The preclear disk went through without error.

So I stopped the array and set the 12TB HDD as second parity.

Then I started the array.

Now the array has started and nothing has happened. I can't see that a parity restore is running. Also, i cannot see any reads/writes on the parity 2 disk.

Status of Parity 2 is invalid. 

After clicking the SYNC button to start parity synchronization, nothing happens.

Even a reboot did not work.

I had to shut down the system hard and after the reboot the array did not reboot.

I had to add the 12 TB HDD again as parity 2 and am now at the same point. 

I would be very grateful for any suggestions.

Best regards!

 

 

Edited April 9 by tlo
forgot to attach diagnostic file

[itimpi]

You are likely to get better informed feedback if you attach your system’s diagnostics zip file to your next post in this thread.

[Gragorg]

So you have 2 parity drives and 1 data drive? I'm not sure what the second parity would do since the only data drive is covered by parity 1.

[tlo]

Unraid is desinged to allow two parity drives, so why not. More parity drives resulting in more security.

Its like the decision between RAID 5 and 6.

My storage will grow in near future.

But for now i would like to know why the parity sync is not starting/progressing and don't let me reboot Unraid. 

Edited November 25, 2023 by tlo

[tlo]

And this is the last Unraid status report:

 

Event: Unraid Status
Subject: Notice [UNRAID01] - array health report [FAIL]
Description: Array has 5 disks (including parity & pools)
Importance: alert

Parity - ST4000VN006-3CW104_ZW60ZVAK (sdb) - standby [OK]
Parity 2 - ST12000NM001G-2MV103_ZL2AF1YQ (sdc) - standby [DISK INVALID]
Disk 1 - ST4000VN006-3CW104_ZW60YWF8 (sdd) - active 37 C [OK]
Cache - Samsung_SSD_980_1TB_S649NU1W907792R (nvme0n1) - active 38 C [OK]
Cache 2 - Samsung_SSD_980_1TB_S649NU1W907800V (nvme1n1) - active 37 C [OK]

Data-Rebuild in progress.
Total size: 12 TB
Elapsed time: 5 hours, 12 minutes
Current position: 0 B (0.0 %)
Estimated speed: 0.0 B/sec
Estimated finish: 25407194 days, 10 hours, 22 minutes
Sync errors corrected: 0
 

[JorgeB]

Please post the diagnostics.

[JorgeB]

1 hour ago, tlo said:

Do you can't see it?

I can but didn't notice, we always recommend posting the diags in a new post for better visibility.

 

Unraid driver is crashing when the parity sync starts, this usually suggests a hardware problem, but sometimes could be compatibility, would suggest running memtest and if nothing is found try with a different release, for example v6.11.5

 

 

[tlo]

Many thanks for your help. Turns out I was having issues with my RAM XMP configuration. DDR5 is a bitch!