Networker

Re: [Networker] NDMP Tape server under Networker 7.3 or 7.4

2007-10-18 05:18:32
Subject: Re: [Networker] NDMP Tape server under Networker 7.3 or 7.4
From: "Buerger, Andreas" <andreas.buerger AT WINCOR-NIXDORF DOT COM>
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Date: Thu, 18 Oct 2007 11:14:51 +0200
We already use it on our NetApp's.

-----Original Message-----
From: Wood, R A (Bob) [mailto:WoodR AT chevron DOT com] 
Sent: Thursday, October 18, 2007 11:00 AM
To: EMC NetWorker discussion; Buerger, Andreas
Subject: RE: [Networker] NDMP Tape server under Networker 7.3 or 7.4

Ever thought of 10Gb Ethernet?

Bob Wood
Senior Technical Analyst

ITC - EMEAE London eHub
Chevron Limited
1 Westferry Circus, Canary Wharf
London, E14 4HA
Tel +44(0)20 7719 3885
Fax +44(0)20 7719 5101
woodr AT chevron DOT com

Chevron Limited. Registered in England and Wales (145197). Registered
office 1 Westferry Circus, Canary Wharf, London, England, E14 4HA


 

>-----Original Message-----
>From: EMC NetWorker discussion 
>[mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Buerger, Andreas
>Sent: 18 October 2007 08:26
>To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
>Subject: Re: [Networker] NDMP Tape server under Networker 7.3 or 7.4
>
>Yes I agree.
>Perhaps it works with ~4.5 TB in your configuration but it 
>won't work with 20-30 TB for each filer.
>
>-----Original Message-----
>From: Matthew Huff [mailto:mhuff AT ox DOT com]
>Sent: Wednesday, October 17, 2007 10:27 PM
>To: EMC NetWorker discussion; Buerger, Andreas
>Subject: RE: [Networker] NDMP Tape server under Networker 7.3 or 7.4
>
>>In my opinion, if it goes into hundreds of gigabytes or terabytes you 
>>have no chance to backup these amount over gigabit ethernet with good 
>>throughput. It would cause a very high load in your network.
>
>It depends on your network. 
>
>We are backing up a cluster of NetApp 920c boxes via gig-E. 
>The weekend full backup takes around 8-12 hours for ~4.5TB and 
>we are going to 6 x LTO-2s on our Sun V480 backup server. We 
>could probably cut that down to
>6-8 hours if we could break up one of our volumes into 
>multiple quota trees to increase parallelism.
>
>
>----
>Matthew Huff       | One Manhattanville Rd
>OTA Management LLC | Purchase, NY 10577
>www.otaotr.com     | Phone: 914-460-4039
>aim: matthewbhuff  | Fax:   914-460-4139
>
>-----Original Message-----
>From: EMC NetWorker discussion 
>[mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Buerger, Andreas
>Sent: Wednesday, October 17, 2007 3:42 PM
>To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
>Subject: Re: [Networker] NDMP Tape server under Networker 7.3 or 7.4
>
>Hi,
>
>We use that with our 7.2 server, but I think it doesn't matter 
>if you use a higher version, it should also work.
>I have configured one of our very old netapp filers with less 
>data backing on our nsrserverhost.
>But it's always a question what amount of data you have to 
>save in level and full backups.
>It's better to attach devices to every filer to backup their 
>data locally.
>In my opinion, if it goes into hundreds of gigabytes or 
>terabytes you have no chance to backup these amount over 
>gigabit ethernet with good throughput. It would cause a very 
>high load in your network.
>
>Regards
>Andreas 
>
>-----Original Message-----
>From: EMC NetWorker discussion 
>[mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On Behalf Of Henry Ferrara
>Sent: Wednesday, October 17, 2007 8:45 PM
>To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
>Subject: [Networker] NDMP Tape server under Networker 7.3 or 7.4
>
>  It has been a while since I worked in Networker so I 
>apologize in advance if my questions seem obvious to some.  
>But here goes anyways...
>
>  We have several Netapp appliances (Ontap 6.5.X and 7.X) and 
>I am assisting our backup admin on how to re-architect our 
>Network environment to backup the the Netapps via NDMP.
>
>   I understand the various configurations that essentially "attach"  
>tape devices to the filers directly (either via scsi, fiber 
>direct or SAN).  Then network initiates the backup and 
>"causes" the filer to run dump to the "locally" attached tape 
>device.  So file index information goes over network to 
>Networker server and data goes from filer direct to tape.
>
>   However, I am wondering if there is a way to have the 
>filers send the backup data to a Networker server directly and 
>have the networker server write the data to tape.  The primary 
>driver for wanted to do something like that is that our tape 
>library is not located physically close enough to one of our 
>filers to allow fiber connecting the library.  (There are 
>other reasons but that alone is enough to prompt the question).
>
>   I did some searching and I saw a description for an old 
>product that Legato had called SnapImage that has as one of 
>its capabilities
>- the ability to act as a NDMP Tape Server.  Which it seems 
>like this would be exactly what I would need.  If I could have 
>a system (or the better yet the Networker server) act as a 
>NDMP tape server than I would think I could have the filer 
>send its data via NDMP across the network instead of locally 
>attached tape devices.
>
>   I think SnapImage was discontinued or replaced by PowerSnap 
>(or something like that) and I did not see in the 
>documentation any reference to the capability of running a 
>NDMP Tape Server.
>
>   Does Networker have the ability to act as a NDMP Tape 
>Server as part of the 7.x?  Or as an add-on module?  And am I 
>correct in my thoughts that if Networker did act as a NDMP 
>Tape server the filer  
>backups would act as I describe above?   And lastly where in the  
>documentation (or on the web) can I find further information 
>on this type of set up?
>
>Thanks in advance,
>
>   Henry
>
>
>---
>Henry Ferrara
>hjferrara AT comcast DOT net
>
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