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Slow Parity Check less than 1MB/s


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Hi all, few month ago I built an unraid file server, during my most recent parity check i've encountered a problem with my drives.

 

First my parity drive gave me an write error, and also reporting 0degrees I thought might be a lose sensor, i ignored it for a while until i can post something on the forums giving a syslog to see how to debug this problem.  Now however the problem is weird, i cannot recreate this error but When the drives are unmounting it takes minutes, also during parity check the system slows to a crawl around 1MB/s.  So i thought it might be some cabling issue, after recabling everything I still get the same errors.

 

I took the syslog but i don't quite understand where to begin, some help would be great before I go off and buying stuff and replacing stuff.

 

by the way I am using unraid 4.5.4

 

Syslog is posted.  I did a few things after it booted up like stopping the parity check etc.

 

syslog.txt

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