Networker

Re: [Networker] Netapp Snapshots & Networker

2008-02-22 16:51:46
Subject: Re: [Networker] Netapp Snapshots & Networker
From: Fazil Saiyed <Fazil.Saiyed AT ANIXTER DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Fri, 22 Feb 2008 15:45:54 -0600
Hello,
Has any one developed routine\procedures to backup vmware hosted on Netapp 
via utilizing netapp  snapshots ? sightly off topic-sorry?
Or for matter of fact , any experience backing up lun Snapshot\restore for 
iscsi or FC attached non VM servers as well ?
What might be the procedure, Licensing, components required to achieve 
that ?




A Darren Dunham <ddunham AT TAOS DOT COM> 
Sent by: EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>
02/22/2008 03:26 PM
Please respond to
EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU>; Please respond 
to
A Darren Dunham <ddunham AT TAOS DOT COM>


To
NETWORKER AT LISTSERV.TEMPLE DOT EDU
cc

Subject
Re: [Networker] Netapp Snapshots & Networker






On Fri, Feb 22, 2008 at 09:16:57AM -0600, Troy Kutil wrote:
> Thanks for the response. I do specify volumes in my save set, but I do 
not 
> follow. Where am I configuring the snapshot as a save set? In the 
> networker client of on the Netapp?

In the networker client.

> Are you saying that I cannot just point 
> to the hidden snapshot folder, but have to point to each snapshot within 

> the folder?

Yes.

> I tried something like this in the client.
> /vol/vol1
> /vol/vol1/.snapshot

Here's the thing...  When you ask it to back up /vol/vol1, you're not
really backing up the live volume.  Instead, it makes a snapshot, and
it backs up that snapshot, then deletes the snapshot when complete.
You can see this in 'snap list' during the backup.  So it doesn't
descend to the other ones.

The Netapp snapshots are just different views to the data.  I imagine
that if you have 30 snapshots of a 2TB volume, that most customers
don't want a backup of the filesystem to require 60TB to capture all
the views. 

> I expected to see that as a directory in the NW user, but still did not 
> see it.

No.  You're backing up one particular snapshot (even though it's named
/vol/vol1 to the backup server).  You can't view other snapshots from
within that view.  (If you cd into a particular snapshot, there's no
longer a .snapshot directory inside that view.)

Netapp dump (which is what NDMP uses) doesn't have any facility for
dumping multiple snapshots at a single time.

-- 
Darren Dunham                                           ddunham AT taos DOT com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >

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