Suddenly 2 disks taken out of raid

[vmax5000]

Not sure what to do, I just got errors on 2 disks at the same time and they are now showing as unassigned disks wanting to preclear! I am currenty running Version 6.9.2 2021-04-07. I see lots of errors in the logs but I would like to know what steps I should take to correct this issue. Luckily I have 2 parity drives.

 

ultimate-syslog-20220126-1119.zip

[JorgeB]

Please post the complete diagnostics.

[vmax5000]

Ok here is the complete diagnostics as requested.

ultimate-diagnostics-20220126-0927.zip

[JorgeB]

Both disks dropped offline, and they are on different controllers, this suggests a power/connection problem, power down, check/replace cables, power back up and post new diags after array start.

[vmax5000]

Ok, just unplugged and re-plugged cables after power down and then booted up, now things look different. By the way, interesting that you say they are on different controllers they are both plugged into the motherboard. Here is the new diagnostics file, I'm guessing that I can now mount them and then run a parity check?

 

Thanks

 

ultimate-diagnostics-20220126-1049.zip

[JorgeB]

12 minutes ago, vmax5000 said:

they are both plugged into the motherboard

Yes, but two ports on the board are from an Asmedia controller, other ones use the Intel PCH controller.

 

Both emulated disks are mounting so you can rebuild on top, though it should be fairly safe if you have spares you can use those instead and keep the old disks in case something goes wrong.

 

https://wiki.unraid.net/Manual/Storage_Management#Rebuilding_a_drive_onto_itself

[vmax5000]

Ok, just unplugged and re-plugged cables after power down and then booted up, now things look different. By the way, interesting that you say they are on different controllers they are both plugged into the motherboard. Here is the new diagnostics file, I'm guessing that I can now mount them and then run a parity check?

 

Thanks

 

I stopped the array and added the disks back, when I started the array it went into a rebuild. I can't thank you enough for your very speedy support! Also I unfortunately I don't have replacements at this time, big drives are still pretty pricey, but I will be getting some asap.