Problem with CIFS

[Naveen]

I have a SAN installed on my FreeNAS and i'm currently runnig FreeNAS 9.3. My problem is that when i trasfer files to this SAN which is in RaidZ then the wrtie/upload speed is jumpy? As you can se below at the picture it stops and starts ? and after some time i get a meesage saying that the computer couldn't find the share ? Please help.


My system:
IBM X3650 with 16 GB Ram and Intel Xeon CPU
IBM DS3400 with 12 1TB HDD (SAN)
1 QLE 2460 HBA

The san is connected through a fiber cable

 

[L]

Interesting.. I have been seeing several of these lately. Most have been network related.

 

[cyberjock]

If you are 100% sure the network isn't the problem then the likely culprit is your zpool is unable to keep up with the workload. Considering you have 12 disks in a RAIDZ configuration the likely culprit is a failing disk in your pool that is holding the whole pool down or your SATA/SAS controller having problems. Are you using an LSI controller with mismatched firmware/driver versions?

 

[L]

Yea, that makes me think too that I can't tell on your graph the intervals?

 

[Apollo]

This make me think that it could be related to network Flow control for the NIC under Windows. Is the profile too tight?
Also, do you have maybe a computer based firewall such as Pfsense installed that will run some sort of anti-virus?

 

[Naveen]

Thanks for the great replays :) I found out that is was my wrtie cache that coused this problem, since it was disabeld.
But now when i trasnfer files to my FreeNAS through CIFS, it just reboots itself? Is there a way to find out why and how to fix this problem? Futhermore my computer and other computers can't find the share when it is in use ?

Hope you guys can help me.

 

[L]

I had a couple of the beta builds do this to me under load. Are you current?

You can check the logs to see if there is anything... /var/log/messages

 

[Naveen]

Hi i'm currently running FreeNAS-9.3-STABLE-201412240734.

Okay thanks, Linda :)