topic SMB 2.1 Support ? in Network and Storage Protocols

SMB 2.1 Support ?

timothylinppc — Thu, 05 Jun 2025 07:14:35 GMT

Anyone knows when SMB 2.1 (specifically, the CIFS lease caching mechanism) will be supported ?

TR-3740 and all the latest Ontap7.X releases only stated SMB 2.0 support, while the Ontap8 release note says SMB 2 is just not supported at all.

The SMB 2/2.1 support is getting pretty critical now that my clients are moving toward Windows 7 (After skipping Vista)

Re: SMB 2.1 Support ?

reena — Tue, 11 May 2010 17:24:42 GMT

Hi Timothy,

SMB 2.1 support is coming up in a future Data ONTAP release.

Reena Gupta

On May 11, 2010, at 7:52 AM, "timothylinppc" <community@netapp.com

SMB 2.1 Support ?

leeda1973 — Wed, 20 Jul 2011 00:09:40 GMT

Hello Reena, do you have any timeframe for SMB 2.1 support in DOT 8.02 7 Mode ?

We are in the process of upgrading approx 18 FAS units to DOT 8.02 7 Mode and would like to use SMB 2.1 to work with Windows 7.

Thanks

David.

SMB 2.1 Support ?

Sebastian_Goetze — Thu, 10 Nov 2011 21:10:40 GMT

Just in case it wasn't noticed yet: Ontap 8.1 Cluster-Mode does support SMB 2.1

8.1 7-Mode not yet...

Sebastian

Re: SMB 2.1 Support ?

kodavali — Wed, 08 Feb 2012 15:14:32 GMT

Not sure if you have got any update. SMB 2.0 support is there in 8.1 7-mode and in 8.0.2 as well.

Re: SMB 2.1 Support ?

jriese — Wed, 15 Aug 2012 10:56:12 GMT

SMB 2.1 will be availabe with 7-Mode in Ontap 8.1.1 🙂

Re: SMB 2.1 Support ?

craigbeckman — Tue, 18 Dec 2012 22:38:53 GMT

There seems to be some issues with SMB 2.1 and the recommendation is to now upgrade to DOT 8.1.2 where SMB2.1 has been disabled.

SMB 2.1 is disabled by default in Data ONTAP 8.1.2. CIFS clients can still negotiate SMB 2.0 connections with the storage system.

Re: SMB 2.1 Support ?

obrakmann — Tue, 21 May 2013 09:39:53 GMT

SMB 2.1 should be available again in 8.1.3.

However, Bug 623978 ("File opens over the SMB 2.1 protocol can take 35-40 seconds to respond") is fixed in 8.1.2P3. I assume that means that SMB 2.1 is already available in that version.

Does anyone know for sure if that is the case?

Re: SMB 2.1 Support ?

obrakmann — Tue, 21 May 2013 10:57:47 GMT

I just received confirmation that SMB 2.1 is indeed available again as of 8.1.2P3.

Re: SMB 2.1 Support ?

craigbeckman — Thu, 23 May 2013 23:01:12 GMT

Yes, I too have been notified that it is fixed in 8.1.2P3.

http://support.netapp.com/NOW/cgi-bin/bol?Type=Detail&Display=623978

Fixed in versions:

Data ONTAP 8.1.2P3 (First Fixed) - Fixed
Data ONTAP 8.1.3RC1 (RC) - Fixed
Data ONTAP 8.2RC1 (RC) - Fixed