Intel x520 speed issues

[ansarmehmood86]

Hi guys. I am new to all this. I have recently purchase these nics for direct attach. I getting speeds of 300-400mb download from server and only 150-170mb upload to server just wondering why such a diffrence my freenas specs are as follows

Intel pentuim g4520@3.60ghz
8gb ram soon will be 16gb
Msi b150m motherboard
6 x 2tb 5400rpm harddrives
16gb usb flash for os

I have a basic system for running plex and cifs sharing. I have also changed host files and mtu size

Sent from my SM-G928F using Tapatalk

 

[SweetAndLow]

Don't bother with MTU size it only gives you 10% performance bump and can cause way more problems than it solves. What does iperf give you for speeds? Also what is your max pool speeds? Your hardware is a little funky but might not be the problem.

Sent from my Nexus 5X using Tapatalk

 

[ansarmehmood86]

I dont know how to run iperf and pool speeds? Help would be great

Sent from my SM-G928F using Tapatalk

 

[SweetAndLow]

We'll start my disabling everything you messed with. The fact you messed with stuff and don't know about iperf is a little unsettling. To use I iperf you need a client machine and your freenas server. On the server run iperf -s and on client run iperf -c <server IP>. The client command might be different deepening in your os of choice. Read the help page for the iperf you install on the client.

Sent from my Nexus 5X using Tapatalk

 

[ansarmehmood86]

Sent from my SM-G928F using Tapatalk

 

[ansarmehmood86]

These are the test results

Sent from my SM-G928F using Tapatalk

 

[SweetAndLow]

Well your iperf results are crazy and don't even come close to your smb performance. Something is messed up with your iperf test.

To test your pool is dd if=/dev/zero of=/mnt/pool/dataset/100g bs=1M count=100000 with a dataset that has compression disabled.

Sent from my Nexus 5X using Tapatalk

 

[ansarmehmood86]

Sent from my SM-G928F using Tapatalk

 

[SweetAndLow]

I'm finished helping you. You can't follow directions.

Sent from my Nexus 5X using Tapatalk

 

[ansarmehmood86]

thanks for your help apreicate it, that pic was sent before i recieved you message am currently in the process of testin the pool, i did say i am new to this and no experciance of cli

 

[ansarmehmood86]

Sent from my SM-G928F using Tapatalk

 

[tvsjr]

And you see a problem with this? Your underlying storage (I'm assuming you're running 6 drives in RAIDZ1 or RAIDZ2, since you haven't given us full system specs) isn't capable of 1GB/sec writes or reads. Your motherboard has a single 6Gbps SATA controller, so that's an immediate bottleneck. It's also not capable of addressing ECC RAM, which is a problem if you care about your data, but I digress.

For your reference, here are some speeds from my system. Tier2 is a 12-drive array of striped mirrors, all 3TB 7200RPM SATA. Tier3 is a 6-drive array of 4TB 7200RPM SAS in RAIDZ2.

Code:

[root@freenas] ~# dd if=/dev/zero of=/mnt/Tier2/test/100g bs=1M count=100000
100000+0 records in
100000+0 records out
104857600000 bytes transferred in 169.876365 secs (617258321 bytes/sec)
[root@freenas] ~# dd if=/dev/zero of=/mnt/Tier3/test/100g bs=1M count=100000
100000+0 records in
100000+0 records out
104857600000 bytes transferred in 213.566121 secs (490984242 bytes/sec)

If you want to write data at 1GB/s, you're going to have to carefully consider each piece of the overall puzzle. At that speed, a system that barely meets minimum specs isn't going to cut it.