Poor Write Performance over SMB in TrueNAS 13.0-U4

[ksousa]

Hey everyone,

I am looking for some help, as I have 8x Seagate Exos x18 18TB drives running in RAIDz2, with only getting a peak write speed of 130-140 MB/s over a 10Gbe SMB connection. Any pointers?

Build:
TrueNAS 13.0-U4

CPU: AMD FX-8350 Black Edition
MOBO: Asus Sabertooth 990FX ATX
RAM: 4x8GB kit of DDR3 32GB RAM - G.Skill Ripjaws X
HBA: IBM M5110 in IT mode
Network card: Akitio 10G/NBASE-T PCIe Network Card

DRIVES:
8x Seagate Exos x18 18TB HDD (Raidz2 pool)
1x Crucial MX500 250GB SSD (this is boot drive)
1x Crucial MX500 1TB SSD (Cache Drive)
1x Adata SU650 128GB SSD (Log)

 

[Samuel Tai]

Network card: Akitio 10G/NBASE-T PCIe Network Card

From https://www.akitio.com/adapters/10g-pcie-network-card:

This PCIe host card is based on the Aquantia AQtion AQC107s controller

The driver for the AQC107s is included in TrueNAS only as a convenience for testing. It's not even an alpha quality driver; it's a developer preview which is in no way suitable for a production system. Get yourself a fiber Intel or Chelsio 10G NIC.

10GBase-T: Best to avoid it if you can

I recently wrote a resource on high speed network performance tuning, and in it, I commented "Do not try to use copper 10GBase-T". @Elliot Dierksen asked about this, and I cranked out a pretty comprehensive post on the topic. Here it is in...

www.truenas.com

 

[Samuel Tai]

According to https://github.com/Aquantia/aqtion-freebsd, this driver is only at version 0.0.5, and doesn't have any official releases yet for FreeBSD, upon which TrueNAS Core is based. There've been no source code commits since 1/19/2022.