Yes, the permissions thing might be the show-stopper on this, but I have to get 
it to work first. And this is a Netapp vol, mounted at the vol level only once.

Steve

STEPHEN STACKWICK | Senior Consultant | 301.518.6352 (m) | sstackwick AT icfi 
DOT com | icfi.com
ICF INTERNATIONAL | 410 E. Pratt Street Suite 2214, Baltimore, MD 21202 | 
410.539.1135 (o)


________________________________________
From: ADSM: Dist Stor Manager [ADSM-L AT VM.MARIST DOT EDU] on behalf of Grant 
Street [grants AT AL.COM DOT AU]
Sent: Tuesday, February 28, 2012 18:39
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] SNAPDIFF with CIFS on Linux supported?

Couple of things

- you need to do the mount at the netapp volume level. So the share has
to be at the netapp volume level. mounting the volume at any other level
will generate this error.
- If you mount the same volume more than once at different
locations/levels it can get confused and give this error. So make sure
that there is only one mount under that volume.
- when you backup a Netapp windows permission volume, backing it up over
NFS will not capture more than standard unix permissions. In order to
capture full windows permissions you need to backup the volume from a
windows host or use NDMP.
- I haven't tried backing up via cifs on linux but, after you get it
working make sure you check the permissions are backed up and restored
properly.
- Make sure you setup the NAS user and password correctly

see
http://www.ibm.com/developerworks/wikis/display/tivolistoragemanager/Snapshot+Differencing+Caveats

I created it to lessen the pain of others

On 29/02/12 09:43, Paul Zarnowski wrote:
> I would be happy to be proven wrong on this, but I believe that snapdiff for 
> CIFS is only supported on Windows.  snapdiff for NFS is supported on AIX and 
> Linux.
>
> BTW, that particular error message seems to be issued for a variety of 
> reasons.  We have found it hard to figure out what the problem is at times, 
> and we have an open PMR for this message right now.
>
> ..Paul
>
> At 03:05 PM 2/28/2012, Stackwick, Stephen wrote:
>> What's in the can...
>>
>> Obviously, Linux systems can mount CIFS shares, but does anyone have the 
>> SNAPDIFF option working? I keep getting:
>>
>> "ANS2831E Incremental by snapshot difference cannot be performed on 
>> /mountpoint as is is not a NetApp NFS or CIFS volume."
>>
>> It is too! The message kind of implies that CIFS is OK on Linux.
>>
>> Steve
>>
>> STEPHEN STACKWICK | Senior Consultant | 301.518.6352 (m) | sstackwick AT 
>> icfi DOT com<mailto:sstackwick AT icfi DOT com>  | 
>> icfi.com<http://www.icfi.com/>
>> ICF INTERNATIONAL | 410 E. Pratt Street Suite 2214, Baltimore, MD 21202 | 
>> 410.539.1135 (o)
>
>
> --
> Paul Zarnowski                            Ph: 607-255-4757
> Manager, Storage Services                 Fx: 607-255-8521
> 719 Rhodes Hall, Ithaca, NY 14853-3801    Em: psz1 AT cornell DOT edu