Hyper-v cluster fails to access CIFS share on FreeNAS 9.10 (worked on 9.3-STABLE-201602031011)

[NickBarrett]

Hi there,

After upgrading to 9.10 today, my Windows Server 2012 R2 Hyper-V Cluster could no longer access it's virtual machine files stored on a CIFS share. I made no configurations changes before or after the upgrade. Booting to the previous 9.3 does make the problem go away.

I had a similar issue a long time ago and had to set "Server maximum protocol" to SMB2_02 in the CIFS settings. This setting was still there after the upgrade to 9.10 but it didn't seem to help. On the cluster servers I was getting "access denied" errors even though I can navigate around the CIFS share fine.

All the cluster's servers (as well as myself) are members of a specific security group in Active Directory, and that group has been set as the "Owner (group)" for the dataset shared by CIFS.

Has anyone got any thoughts as to what I could tweak in the config of 9.10 to get it going?

 

[cyberjock]

I don't have any recommendations on the problem off the top of my head. You might want to open a bug ticket though. If you do, you should include the bug number here.

 

[SweetAndLow]

Error messages? Any other kind of access issues?

 

[Purkki]

I have the same problem, it was temporally fixed by downgrade to 9.3.. Any ideas how to get 9.10 working?

 

[Purkki]

Hi I think this problem now occurs also on the latest version of 9.3 brach. Does it have something to do with http://badlock.org/ ?

 

[Purkki]

Is there a way to "update" to a previous (older) version of 9.3 branch?

 

[Purkki]

Tried setting "SASL wrapping": plain -> sign and seal. Did not help.
Also tried setting winrm s winrm/config/client '@{TrustedHosts="freenas.local.domain"}' on the hyper-v nodes. Did not help.

Any ideas?

 

[Purkki]

Reinstall from CD to the old version of 9.3-STABLE-201602031011 helps to make the cluster work again.

Updating to newer versions:
Build FreeNAS-9.3-STABLE-201604041648 (Still working)
Build FreeNAS-9.3-STABLE-201604120241 (Still working)

Build FreeNAS-9.3-STABLE-201604140556 (breaks Hyper-V Cluster that uses Freenas SMB share as a shared storage for VM)