The part of that page that explains the specific function says: "The DFS advertisement is what will allow a symlink that is a 'widelink' to work properly. This particular advertisement occurs during the time the client is making its initial connection to a CIFS share".
I'm still unclear about what changed in 7-mode to CDOT that required this.
On Wed, Dec 9, 2015 at 2:10 AM, andrei.borzenkov@ts.fujitsu.com < andrei.borzenkov@ts.fujitsu.com> wrote:
DFS referrals are used to implement symliks, widelinks and autolocation (redirection to the optimal LIF). This KBA has extensive matrix of what is impacted:
https://kb.netapp.com/support/index?page=content&id=3014510&locale=e...
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*From:* toasters-bounces@teaparty.net [mailto: toasters-bounces@teaparty.net] *On Behalf Of *Basil *Sent:* Wednesday, December 09, 2015 6:15 AM
*To:* Sayla, Mustafa *Cc:* toasters@teaparty.net *Subject:* Re: DFS on CDOT 8.3.1 and riverbed appliance
Do you know what that controls? DFS advertisements must not have been in place in 7-mode because I have active 7-mode filers using the same Riverbed with SMB2 and no issues, but what do they do in CDOT?
Also, fun fact- if anyone is tempted to get around this by going back to SMB1, you won't be able to do virus scanning. The CDOT virus scanning system relies on SMB2 to work.
On Tue, Dec 8, 2015 at 8:44 PM, Sayla, Mustafa < MSAYLA@mesirowfinancial.com> wrote:
We are upgrading our Riverbed to the latest version this Friday but we have been told by Riverbed that even after the upgrade we have to disable the dfs advertise on the SVM and then enable on a per share basis.
Mustafa Sayla
*From:* Basil [mailto:basilberntsen@gmail.com] *Sent:* Tuesday, December 08, 2015 4:57 PM *To:* Sayla, Mustafa *Cc:* toasters@teaparty.net *Subject:* Re: DFS on CDOT 8.3.1 and riverbed appliance
We had a similar issue- can you upgrade the RIOS version on your Riverbed? We were told that that would fix the issue.
On Tue, Dec 8, 2015 at 5:26 PM, Sayla, Mustafa < MSAYLA@mesirowfinancial.com> wrote:
We just started migrating our CIFS data from 7-mode to CDOT system. For our remote office data we use riverbed for acceleration and what we are finding out that if “-is-advertise-dfs-enabled” is set to true then it will not accelerate the CIFS traffic. Per Netapp and Riverbed we have to turn this off on the CIFS Vserver for all the data and then enable it for shares we want the dfs advertise to work. Our issue is that we have over 200 shares which do not pass through riverbed appliance and are not affected but we still have to turn it off and there are only about 10 shares for which we want this to be disable. If I follow the solution by Netapp then I would disable on the vserver and then enable it for the 200 or so shares manually and also I have to remember it to do it for new shares.
We use DFS for name space only and not for replication. What I am not clear is to what this setting would do if I turn it off for all the CIFS data? Does that mean I cannot map the drives using dfs path or something else. Anyone has run into similar issue and what did you do to resolve it. Any help is appreciated.
Mustafa Sayla
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