Poor performances with CIFS shares and freezes after update to 11.2-U2.1

[Paranoiak]

Hi,

My FREENAS is 5 years old, I've never had this kind of problem before. I updated some time ago to the latest version 11.2-U2.1 and since then it seems that I have many performance issues on my CIFS shares...

Before I saturated the Gbps very easily. From now on, copies take time to launch, the flow rates are bad and I have freezes (the copy is not a straight line...). I even have a copy that crashed (it was no longer progressing) and no way to access my shares... Double reboot to be able to access the data again.

I deleted the old boot from the previous version.... So how can we do downgrading?

I may not be an isolated case and may have to wait for another update?

Thank you for your feedback.

 

[Basil Hendroff]

If you haven't applied new feature flags to the volume, you should be able to downgrade to FreeNAS 11.1-U7.

 

[Paranoiak]

If you haven't applied new feature flags to the volume, you should be able to downgrade to FreeNAS 11.1-U7.

Sadly I have updated the ZFS pool. Which is the oldest version who supports it ?

 

[HoneyBadger]

Sadly I have updated the ZFS pool. Which is the oldest version who supports it ?

Any of the 11.2 releases should have the same feature flags; I don't think there were new ones added in the subversions.

 

[Paranoiak]

Maybe I should downgrade to the first 11.2 release... Or just wait. What would be the process ? Reinstall from scratch and import config backup file ?

 

[Paranoiak]

I figured out that it concerns only READ performances, no issue WRITING files on the share... I don't understand anything !

 

[Basil Hendroff]

I figured out that it concerns only READ performances, no issue WRITING files on the share... I don't understand anything !

How did you determine this?

 

[Paranoiak]

From my Windows client, copy from the NAS to the desktop and copy from the desktop to the NAS.

When I copy a file from my desktop the progression copy bar starts instantly and the rate is about 100 MB/s.

When I copy a file from the share to the desktop, there are issues.

(sorry for my English)

 

[Basil Hendroff]

First thing I would do is try to isolate the problem. Broadly speaking, you need to isolate it to one of three areas - the client, the network or the server. So, before further investigation of the server, let's see if we can eliminate the client and network first.

Try reading and writing from a different Windows PC. If the issue disappears, the problem will be with the first Windows client.
What sits in the network path between the Windows client and the FreeNAS server?

 

[Paranoiak]

Thank you for your help.

I have a MikroTik hAP ac2 between the client and the NAS. (router with Gbe ports)

My client is a Intel NUC with Intel NIC under Windows 10. I will try from another PC and also with a direct ethernet cable plugged into the NAS.

I will post the results later, I'm at the office right now.

 

[Paranoiak]

Just to illustrate the issue.

Working great :

Not working great (it freezes at the start then suddenly reaches the end) :

 

[HolyK]

From Mikrotik perspective...
- Update the packages/FW
- Verify that you don't have any TX/RX quotas set on the Eth. Interface.

Other ideas:
- Is it only CIFS issue or do you see the clear diffetence in transfer speeds over FTP/SCP as well?
- Try iperf between client and NAS

 

[Paranoiak]

Well, the problem is solved. I reinstalled Windows 10 with a clean installation (build 1809) and miracle! I was already planning to do that. Glad it works!
I had taken the time to test the different network ports before this manipulation and I had not encountered any problems from another computer under Windows 10.
I like Windows....

 

[Basil Hendroff]

So it was a client issue?