Hello to all of you,.

Last friday I upgraded my server from version 6.12.14 to version 7.0.0

It all went without any problems at all.
 

Since I mounted the server I have the parity check scheduled to start on the 26th of every month, all worked well, I usually have a duration of 1 day 5 hours for the task to complete.

 

I haven't changed no hardware on my server since last month parity check.

To my surprise, today the task started as scheduled 00h01 and usually by 08h or 09h it is advanced, except for today. 
When I checked the status of the parity check, I was only at 2% when it should have been at 24% or higher.

The speed of the disk was at 8MB/s

 

I decided to let go and check on the afternoon, again to my surprise it hasn't move I was at 2.2% complete which it is not normal.

I went on the forums, found a tread from 2022 with a very slow parity check speed but no solution of the problem or what could have cause it.

So I did the same action as someone posted, launched my server on GUI safe mode and started the array and the parity check.
The speed was back at 198 MB/s

 

So I don't know if it is a bug on version 7 or what was going on with my server.
I managed to do a diagnostic while it was slow, I will be putting it for review if anyone can help me find what was causing my speed to be slow for the parity check.

I don't have the knowledge to understand unraid diagnostic and where to look so I will thank you a lot for your information regarding this matter.

 

Thank you in advance again for your precious help fellow Unraiders.

maverick-diagnostics-20250126-1511.zip

There's something reading from disk4, possibly the file integrity plugin.

On 1/27/2025 at 7:45 AM, JorgeB said:

There's something reading from disk4, possibly the file integrity plugin.

Thanks for the info.  I had the same issue this month as I only run integrity check every three months....  disabled file integrity check (even though it was set to 'not start' if parity was operating), and my avg read speed has gone up from 20MB/s to about 200 MB/s.  Win!

Edited March 31, 20251 yr by Bob_C