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(SOLVED) Slow Parity check on schedule

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SCRATCH THAT: I think it was a false alarm. I noticed the "File Integrity" plugging was running at the same time on the same schedule.  Talking about bad timing. I disabled the file integrity process and started parity all over after rebooting the box. I will keep you posted what I get in terms of performance. On 55MB/Sec now

 

Man now I am scared.  System seems to be rock solid no errors or anything.  This is my first scheduled parity check after the system was built and I only get 13 MB/Sec. I will be at this fir 10 days :) Anything I am missing or done wrong?  I did attach the diagnostics file and few screenshots.  I would really appreciate the help and guidance

 

As background, the initial parity check on this was around 120/MB/Sec so I know the box can do it and the setup/hardware is right and the same

 

Thanks

 

PR-1JPG.thumb.JPG.743d98a61f493e0b050f746cab6ce372.JPGPR-2.thumb.JPG.4aaaa48ab12244c7ea248b929ad036f2.JPG

nas-unraid-diagnostics-20200825-1123.zip

Edited by johnwhicker

It should be quicker than that in my opinion. I made a check yesterday and it was much faster. Are there file transfer going on at the same time ?

 

Do you have a rough idea of the usual read or write speed on the Array ?

Although, you seem to have a low power CPU with one thread maxed out from unraidd0.

I don't know if the Parity check is multithreaded, maybe this could be the issue ?

  • Community Expert

There was something reading from disk2 when the diags were saved, any array activity will slow down the parity check.

 

 

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