Networker

Re: [Networker] NDMP for NAS devices- do you like it?

2004-02-13 12:32:06
Subject: Re: [Networker] NDMP for NAS devices- do you like it?
From: Itzik Meirson <imeirson AT MBI.CO DOT IL>
To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
Date: Fri, 13 Feb 2004 19:30:32 +0200
For the Netapp, when you do an NDMP backup, a snapshot will be
automatically created for the backup. The life time of this snapshot is
the duration of the backup and it will be erased at the end of the
backup.
If the path you specify to be backed up is an existing snapshot, then
the existing snapshot will be backed up.
Itzik

> -----Original Message-----
> From: Staszewski, Beth [mailto:beth.staszewski AT tcunet DOT com]
> Sent: Friday, February 13, 2004 15:16
> To: 'Legato NetWorker discussion'; Itzik Meirson
> Subject: RE: [Networker] NDMP for NAS devices- do you like it?
> 
> Will this work for snapshots also?  If not how are you backing up your
snapshots?
> 
> Beth Staszewski
> Network Engineer
> 
> Teachers Credit Union
> 110 South Main Street
> South Bend, IN 46601
> 
> Office:  (574) 284-6413
> Fax:     (574) 284-6384
> 
> 
> 
> -----Original Message-----
> From: Itzik Meirson [mailto:imeirson AT MBI.CO DOT IL]
> Sent: Thursday, February 12, 2004 6:19 PM
> To: NETWORKER AT listmail.temple DOT edu
> Subject: Re: [Networker] NDMP for NAS devices- do you like it?
> 
> I second Bob's comments.
> From my perspective I tend to break down the savesets to more
> manageable/recoverable.
> This means to have the single saveset size in the range of 100-200GB.
> You could use second level directories or qtrees as the saveset.
> It is true that this imposes some administrative and management
overhead
> but then it make life easier.
> A new feature with NW 7.1 is to specify ALL (for Netapp) as the
saveset
> and Networker will automagically find out what volumes are defined and
> back them up all with the number of streams that correspond to your
> number of NDMP drives and NAS Networker client parallelism setting.
> Itzik
> 
> > -----Original Message-----
> > From: Legato NetWorker discussion
> [mailto:NETWORKER AT LISTMAIL.TEMPLE DOT EDU] On Behalf Of Wood, R A
> > (Bob)
> > Sent: Thursday, February 12, 2004 17:23
> > To: NETWORKER AT LISTMAIL.TEMPLE DOT EDU
> > Subject: Re: [Networker] NDMP for NAS devices- do you like it?
> >
> > Stan,
> >         Let me take the questions one at a time,
> > do you do full backups of your NatApp device nightly? No, we do full
> at
> > weekend and level 1 through 5 Monday to Friday.
> >
> > How much data is backed up on a typical night    1.3TB for full avg
> > 350-400GB weeknight
> >
> >  and can you recover individual NetApp files?   Yes
> > If so, how long does it take to get back a NetApp file from tape via
> the
> > NDMP protocol? Before we set the 'direct=y' option it took up to 30
> > hours to restore from a 750GB saveset, now it is less (don't have
> > figures to hand right now).
> >
> > As an aside, I'm working at reducing the size of the datasets for
> backup
> > by selecting savesets further down the tree (this will mean a
> management
> > overhead to make sure that everything is covered but should speed up
> > recovery time).
> >
> > Regards
> > Bob
> >
> > -----Original Message-----
> > From: Stan Horwitz [mailto:stan AT temple DOT edu]
> > Sent: 12 February 2004 14:42
> > To: Wood, R A (Bob)
> > Cc: Legato NetWorker discussion
> > Subject: RE: [Networker] NDMP for NAS devices- do you like it?
> >
> >
> >
> > On Thu, 12 Feb 2004, Wood, R A (Bob) wrote:
> >
> > >Stan,
> > >       We're using NDMP and 7.1.1 haven't noticed any difference
from
> > 6.1.3
> > >yet. We have NetApp connected to dedicated library right now but
> intend
> >
> > >to connect to fabric and use shared library in the near future.
> >
> > Just out of curiosity, do you do full backups of your NatApp device
> > nightly? How much data is backed up on a typical night and can you
> > recover individual NetApp files? If so, how long does it take to get
> > back a NetApp file from tape via the NDMP protocol?
> >
> > --
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> 
> 
>
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The contents of this email and any attachments are confidential.
It is intended for the named recipient(s) only.
If you have received this email in error please notify the system manager or  
the 
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MBI - System Team
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