Hi, I'm new to unraid, just processing move files from old HDD to array, I have observe something that I'd lik to clarify

 

I have setup an array with 3 disks without parity at this moment,  I'm manually mount old HDD and mv file to user share, the write speed is normal around 150-200M/s, and it is actually writing on disk 3, at the same time,  I try to read some files from user share, as the files actually on disk 1, I was expectig the write activity on disk 3 will NOT impact this read activity, but in fact, it do impact the read speed, I only got 2-3M/s;  

 

After I stop mv activity, the read speed is back to normal around 180M/s, as I' m very new to unraid(still in trial), I want confirm if this situation is normal

 

 

thanks pointing me for this thread, it seems it is a bug here

11 minutes ago, johnnie.black said:

 

thanks pointing me to this

it seems it do related to write activity, if there is no write activity,  3 concurrent reading from 3 disk share can both reach 150-200M/s 

Yes, all reads or all writes on more than one disk is OK, latter one only really possible without parity, issue appears to be when there's a write to the array any other read becomes very low priority.