Mailing List Archive

It’s in 9.5:

aff::*> version
NetApp Release 9.5: Thu Dec 13 16:18:04 UTC 2018

aff::*> nfs modify -v3-hide-snapshot
enabled disabled

Not sure about 9.4. Did you go into diag/advanced mode?


From: toasters-bounces@teaparty.net <toasters-bounces@teaparty.net> On Behalf Of Sebastian Goetze
Sent: Monday, February 4, 2019 10:50 AM
To: Toasters <Toasters@teaparty.net>; Jeremy Webber <Jeremy.Webber@al.com.au>
Subject: Hide Snapshots from NFS clients

NetApp Security WARNING: This is an external email. Do not click links or open attachments unless you recognize the sender and know the content is safe.




Hi All,



I'm teaching a SMB/NFS combo at the moment, and the question again came up, how to hide ".snapshot" from NFS users/scripts (like in the 7-Mode days).



In the Man Pages I found

[ -v3-hide-snapshot {enabled|disabled} ] - Hide Snapshot Directory under NFSv3 Mount Point
This optional parameter specifies whether to hide the .snapshot directory while listing under NFSv3 mount
points. However an explicit access to the .snapshot directory will still be allowed even though the option is
enabled. The default setting is disabled at the time of creation.
(I checked, it's not in 9.4)



Greetings from Munich



Sebastian

NAI (NetApp Instructor)



_________________________________________________

Jeremy asked Feb 5, 2016:

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.…

Yep it is, I just discovered it...

But *it's not mentioned in the Release Notes, *despite being something
many people have asked for for a long time...


I''ll fire up my 9.4 sim and will check Diag Mode. It's probably not in
Advanced Mode, since it's not mentioned in the 9.4 Man Pages (and they
DO contain Advanced Mode stuff...)


Sebastian


On 19/02/04 4:57 PM, Parisi, Justin wrote:
>
> It?s in 9.5:
>
> ?
>
> aff::*> version
>
> NetApp Release 9.5: Thu Dec 13 16:18:04 UTC 2018
>
> ?
>
> aff::*> nfs modify -v3-hide-snapshot
>
> ??? enabled? disabled
>
> ?
>
> Not sure about 9.4. Did you go into diag/advanced mode?
>
> ?
>
> ?
>
> *From:* toasters-bounces@teaparty.net <toasters-bounces@teaparty.net>
> *On Behalf Of *Sebastian Goetze
> *Sent:* Monday, February 4, 2019 10:50 AM
> *To:* Toasters <Toasters@teaparty.net>; Jeremy Webber
> <Jeremy.Webber@al.com.au>
> *Subject:* Hide Snapshots from NFS clients
>
> ?
>
> *NetApp Security WARNING*: This is an external email. Do not click
> links or open attachments unless you recognize the sender and know the
> content is safe.
>
>
>
> Hi All,
>
> ?
>
> I'm teaching a SMB/NFS combo at the moment, and the question again
> came up, how to hide ".snapshot" from NFS users/scripts (like in the
> 7-Mode days).
>
> ?
>
> In the Man Pages I found
>
> *[ -v3-hide-snapshot {enabled|disabled} ] - Hide Snapshot
> Directory under NFSv3 Mount Point*
> This optional parameter specifies whether to hide the .snapshot
> directory while listing under NFSv3 mount
> points. However an explicit access to the .snapshot directory will
> still be allowed even though the option is
> enabled. The default setting is disabled at the time of creation.
>
> (I checked, it's not in 9.4)
>
> ?
>
> Greetings from Munich
>
> ?
>
> Sebastian
>
> NAI (NetApp Instructor)
>
> ?
>
> _________________________________________________
>
> Jeremy asked Feb 5, 2016:
>
> 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.?
>

Hi Justin,


I just checked: 9.4 even in Diag Mode doesn't have the -v3-hide-snapshot
parameter.


Sebastian


On 19/02/04 5:01 PM, Sebastian Goetze wrote:
>
> Yep it is, I just discovered it...
>
> But *it's not mentioned in the Release Notes, *despite being something
> many people have asked for for a long time...
>
>
> I''ll fire up my 9.4 sim and will check Diag Mode. It's probably not
> in Advanced Mode, since it's not mentioned in the 9.4 Man Pages (and
> they DO contain Advanced Mode stuff...)
>
>
> Sebastian
>
>
> On 19/02/04 4:57 PM, Parisi, Justin wrote:
>>
>> It?s in 9.5:
>>
>> ?
>>
>> aff::*> version
>>
>> NetApp Release 9.5: Thu Dec 13 16:18:04 UTC 2018
>>
>> ?
>>
>> aff::*> nfs modify -v3-hide-snapshot
>>
>> ??? enabled? disabled
>>
>> ?
>>
>> Not sure about 9.4. Did you go into diag/advanced mode?
>>
>> ?
>>
>> ?
>>
>> *From:* toasters-bounces@teaparty.net <toasters-bounces@teaparty.net>
>> *On Behalf Of *Sebastian Goetze
>> *Sent:* Monday, February 4, 2019 10:50 AM
>> *To:* Toasters <Toasters@teaparty.net>; Jeremy Webber
>> <Jeremy.Webber@al.com.au>
>> *Subject:* Hide Snapshots from NFS clients
>>
>> ?
>>
>> *NetApp Security WARNING*: This is an external email. Do not click
>> links or open attachments unless you recognize the sender and know
>> the content is safe.
>>
>>
>>
>> Hi All,
>>
>> ?
>>
>> I'm teaching a SMB/NFS combo at the moment, and the question again
>> came up, how to hide ".snapshot" from NFS users/scripts (like in the
>> 7-Mode days).
>>
>> ?
>>
>> In the Man Pages I found
>>
>> *[ -v3-hide-snapshot {enabled|disabled} ] - Hide Snapshot
>> Directory under NFSv3 Mount Point*
>> This optional parameter specifies whether to hide the .snapshot
>> directory while listing under NFSv3 mount
>> points. However an explicit access to the .snapshot directory
>> will still be allowed even though the option is
>> enabled. The default setting is disabled at the time of creation.
>>
>> (I checked, it's not in 9.4)
>>
>> ?
>>
>> Greetings from Munich
>>
>> ?
>>
>> Sebastian
>>
>> NAI (NetApp Instructor)
>>
>> ?
>>
>> _________________________________________________
>>
>> Jeremy asked Feb 5, 2016:
>>
>> 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.?
>>