Slow transfer speeds to NAS.

[marax]

Hello! Hopefully this is in the right place.
This is my second build with FreeNAS. First build had same specs listed below but with WD Red EFAX drives. I swapped those out with EFRX drives and started over.

I finished my install last night and was getting about 42MB/s transferring files to it. This morning I grabbed about 275GB of files and started to copy them to the NAS and it is going at 11MB/s.

Gigabyte C246M-WU4 motherboard
Intel i5-9100
32 gigs RAM
Six 6TB WD Red WD60EFRX drives RAID-Z2. Booting from a WD M.2 NVMe drive (can't remember specs).
Using onboard LAN
Netgear GS308 switch
CAT5e cables

I'm sure I did something wrong, I just don't know what.

 

[Yorick]

What protocol are you using to copy the files?
What's the client OS?

You expect around 100MB/s for large files. Less for a gazillion small ones, potentially.

 

[marax]

What protocol are you using to copy the files?
What's the client OS?

You expect around 100MB/s for large files. Less for a gazillion small ones, potentially.

I have it setup with SMB. It is just windows machines connecting to it. In this case Windows 7.
Files are between 1 and 20 gigs in size.
Before I changed to the EFRX drives i was getting 70MB-100MB/s +
I know this thing isn't going to be super fast at transferring files but 11MB/s seems extremely slow to me.

 

[ornias]

Looked at the SMART stats?
New doesn't say much, because most failures are either first 3 months or after years of use.

 

[Samuel Tai]

This smells like your NIC is running at 100Mbps, instead of Gigabit speeds. What does ifconfig -a show?

 

[ornias]

This smells like your NIC is running at 100Mbps, instead of Gigabit speeds. What does ifconfig -a show?

A NIC running at 100Mbps wouldn't transfer at 42MB/s afaik...

 

[marax]

I set a SMART test to run last night, but apparently that didn't happen. Just ran a short test now and they all completed without error.

ifconfig -a says Ethernet autoselect 1000baseT Full duplex.

 

[ornias]

@marax Could you do a local speed test for us, to determine what part of your setup the issue is most likely in?
(I know we can expect disks after the swap, but just to be sure)

 

[marax]

@ornias I'd be happy to. What is the best way for me to test my LAN speed?

 

[revengineer]

Use iperf or iperf3. Run as server on FreeNAS and client on PC.

 

[marax]

Use iperf or iperf3. Run as server on FreeNAS and client on PC.

Awesome, thank you! I am getting 94 Mbits/s.

 

[marax]

I unplugged the NAS from my switch and plugged it into the router and still get 94Mb/s.

 

[marax]

I just ran a speed test from another PC and got 922Mb/s.

 

[marax]

The network adapter on the client PC was set to 100Mb/s. I set it to 1000 and started speed testing at 600-700Mb/s. File transfer is going at 30-40Mb/s. That still seems slow to me.