Networker

Re: [Networker] NDMP questions

2008-04-30 06:35:17
Subject: Re: [Networker] NDMP questions
From: Shyam Hegde <hegde.shyam AT GMAIL DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Wed, 30 Apr 2008 16:00:24 +0530
Would you please explain this in details please?

"You could, if you wanted to, use NDMP and have it backed up via a proxy
storage node to a standard tape device and avoid NDMP devices this way."

TIA
-Shyam



On 4/29/08, Wood, R A (Bob) <WoodR AT chevron DOT com> wrote:
>
> Nick,
>
> Tape library can be any standard SCSI or FC device (supported by
> Networker). Sounds like your library will be fine,
>
> The tier level does refer to NAS device
>
> Yes, you will need a library license for the NAS attached library.
>
> There are alternatives to using NDMP - NAS devices generally present
> shares over a network. One method of backing up could be to have the
> Network server (or a storage node, or another client of suitable OS)
> connect to the network share and use save -L to backup the network
> shared drive. It means that all of the data goes over the network (not
> as big an issue these days) but it does mean that you don't have the
> issue of NDMP tapes and non-NDMP tapes.
>
> You could, if you wanted to, use NDMP and have it backed up via a proxy
> storage node to a standard tape device and avoid NDMP devices this way.
>
> Better still, employ a second NAS at another location and snap mirror
> (or whatever flavour your NAS does) the volumes... but this takes us to
> a totally different area...
>
> Regards
> Bob
>
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] 
> On
> Behalf Of Nick Tan
> Sent: 29 April 2008 07:46
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] NDMP questions
>
> Hi all,
>
> I've been asked to look into possibly adding a NAS to our environment
> and back it up using Networker.  I've never used a NAS before so I have
> some basic questions which I'm hoping someone will be able to answer for
> me.
>
> I've figured out that I'd use NDMP to back up the NAS device (at this
> stage I'm not sure which NAS device we'd be getting).  Looking through
> the admin guide it looks like there are a few ways to configure this.  I
>
> think we'd be looking at the local backup, where we connect a tape
> library directly to the NAS.
>
> So my first question is, does the tape library have to be a special NDMP
>
> aware library, or can any SCSI library which is supported by Networker
> work?  Specifically, we have a Quantum SuperLoader 3 with one DLT-S4
> drive which we'd be looking to attach to the NAS.
>
> My second question is to do with licensing.  There are various Tier
> level licenses for NDMP client connections based on the number of
> processors.  Am I correct in saying that this is the number of
> processors in the NAS unit itself?  And, is an autochanger license
> required for the library which will be attached to the NAS?
>
> Thanks,
>
> Nick
>
> --
> Nick Tan
> Unix Systems Manager
> The Walter and Eliza Hall Institute
> nick AT wehi.edu DOT au
>
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