Hi guys,
I know that this is a strange request but I want to ask you something.
I’m new to truenas and I setup a simple server with 32GB of ram 4x1TB hdd in raidz1 and a Xeon E5 2630V4.
I’ve never seen the cpu usage get higher than 20% and my cpu is running very cool with a max temp of only 30°C ( I put a 10€ cpu air cooler from aliexpress).
Right now I’m writing at more or less 17MB/s and reading at 42MB/s.
Is there something I can do to increase the cpu usage and speed up the parity checks for the writing?
With these speeds, my guess is that you’re using smr drives which are known for slow transfer speeds,
pls post the exact model number of these drives. If they’re seagate baracuda, wd red or any kind of 2.5" drives they’re likely the cause of your problems.
I think that the biggest bottleneck is my wifi speed. because when I checked the speed between my pc and the server with iperf3 it tops up at 80/90 Mb/s.
I also tested the disks using fio and the write speed it’s quite normal being around 170MB/s and reading at 6GB/s (I think thanks to the caching done by the ram).
Anyway I have 4 2.5" 5400rpm/s hdd