Currently the only way to do this is via the volume level option.

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of andrei.borzenkov@ts.fujitsu.com
Sent: Friday, February 05, 2016 2:23 AM
To: Jeremy Webber; Toasters
Subject: RE: Hide snapshots from NFS clients in 8.3.1

It does not look like similar functionality exists (documented) for cDOT. For CIFS you can control visibility on share level, but for NFS it is all or nothing.

https://kb.netapp.com/support/index?page=content&id=8010364&locale=en_US&access=s

---

With best regards

Andrei Borzenkov

Senior system engineer

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FUJITSU

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From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Jeremy Webber
Sent: Friday, February 05, 2016 5:44 AM
To: Toasters
Subject: Re: Hide snapshots from NFS clients in 8.3.1

Hi and thanks for answering.

We have tried the volume setting. The problem with that is that it makes the snapshots completely inaccessible to the NFSv3 client. If the snapshots are inaccessible then you cannot access snapshot backup copies from the client, and we want to do that.

I want the snapshots to be accessible but not visible, as we have in 7-mode.

Thanks,

  Jeremy

On 5 Feb 2016, at 1:33 pm, mkopenski@gmail.com wrote:

In 7-mode you could hide the snap dir on each volume by changing the option nosnapdir to on

In C-mode the just do a vol modify <vol_name> -snapdir-access false to hide the snapshot from the system that has access to it

On Thu, Feb 4, 2016 at 9:25 PM, Jeremy Webber <Jeremy.Webber@al.com.au> wrote:

In 7-mode we are able to make snapshots accessible, but invisible to NFSv3 clients.

In this mode there is a .snapshot directory, but if you ‘ls’ that directory it appears empty. However, if you ls .snapshot/hourly.0 say then you can see that the snapshot is in fact there.

We now have an 8.3.1 CDOT filer and have not been able to work out how to reproduce the behaviour. The snapshots are either accessible and visible (which causes problems for programs which walk the tree) or not accessible at all.

NetApp support have not been able to help so far. Can anybody on this list?

Thanks,

  Jeremy

p.s. the relevant 7-mode option is:

nfs.hide_snapshot            on         

-- 
Jeremy Webber
Senior Systems Engineer
Animal Logic Pty Ltd
Tel: +61 2 8310 3577
Main: +61 2 9383 4800
Fax: +61 2 9383 4801

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-- 
Jeremy Webber
Senior Systems Engineer
Animal Logic Pty Ltd
Tel: +61 2 8310 3577
Main: +61 2 9383 4800
Fax: +61 2 9383 4801