So I'm still kind of new to Unraid and need some help with an issue.

I ran a Parity Check without corrections on 5.0 rc11 pro and need some help understanding what the error means. I have attached the syslog, and don't know if the error it found is serious or not.

 

 

Note: A few days ago, a disk connected to a Highpoint Rocket 620 registered as disconnected midway through a mover process. I believe that the disconnection could have been occurred because I wrote more data to the array than the cache drive could hold. This has occurred before on my array when apparently attempting to move too much data at once (five or more transfers simultaneously). I removed the disk from the array and then started, stopped, and reassigned the disk. I then began a data-rebuild of the drive. which was completed later that day. The drive connected to that controller is a Seagate Barracuda 3TB.

 

Thanks again for any advice or clarifications.

syslog.txt

Post SMART reports for all drives.

This is the SMART reports for all of the drives. The drive in question is disk5.

smartparity.txt

smartdisk1.txt

smartdisk2.txt

smartdisk3.txt

This is the rest of the disks (I could only upload 4 files at a time).

smartdisk4.txt

smartdisk5.txt

smartcache.txt

From your SMART reports the only disk that looks like it is having issues is disk4:

 

Device Model:    WDC WD30EZRX-00MMMB0

Serial Number:    WD-WCAWZ2330114

 

The lines that indicate there is trouble are:

 

  5 Reallocated_Sector_Ct  0x0033  188  188  140    Pre-fail  Always      -      169

196 Reallocated_Event_Count 0x0032  197  197  000    Old_age  Always      -      3

197 Current_Pending_Sector  0x0032  200  200  000    Old_age  Always      -      3

 

This says that this drive has already reallocated 169 bad blocks (and replaced them with spare blocks) and there are 3 more blocks that will be remapped the next time they are written to.

 

Now 169 bad blocks is probably not too bad (it is a common belief that drives have at least a few thousand spare blocks) but if this number continues to climb the drive is failing.  Most people who post here would probably replace this drive soon.

 

Regards,

 

Stephen

From your SMART reports the only disk that looks like it is having issues is disk4:

 

Device Model:    WDC WD30EZRX-00MMMB0

Serial Number:    WD-WCAWZ2330114

 

The lines that indicate there is trouble are:

 

  5 Reallocated_Sector_Ct  0x0033  188  188  140    Pre-fail  Always      -      169

196 Reallocated_Event_Count 0x0032  197  197  000    Old_age  Always      -      3

197 Current_Pending_Sector  0x0032  200  200  000    Old_age  Always      -      3

 

This says that this drive has already reallocated 169 bad blocks (and replaced them with spare blocks) and there are 3 more blocks that will be remapped the next time they are written to.

 

Now 169 bad blocks is probably not too bad (it is a common belief that drives have at least a few thousand spare blocks) but if this number continues to climb the drive is failing.  Most people who post here would probably replace this drive soon.

 

Regards,

 

Stephen

 

The disk needs to be rebuilt. Any pending sectors will cause issues and may prevent the reconstruction of a failed disk. If you have a spare use it now then pre clear the problem disk. Otherwise, start the array with the disk unassigned and then start the array with the disk assigned and the rebuild will begin. Make sure that no other disks have pending sectors before proceeding.