Francis Swasey <Frank.Swasey AT uvm DOT edu> wrote on 10/22/2009 11:26:00 AM:
> On 10/22/09 11:00 AM, MIchael Leone wrote:
> Another clarification - I am speaking of a dedicated storage node - it
> only backs up itself. It's a SQL server, so what I am backing up are SQL
> DBs. So how do I get NetWorker to write to both devices at the same
time?
> And would I have to enumerate exactly what DBs I want to save, to each
> device?
>
>
> If you have both AFTD's in the same media pool -- and your client
> has multiple savesets --
Well, usually I just define 1 saveset for this client - MSSQL: - and it
takes all the DBs, without me having to enumerate them. Is that what you
mean?
> you can get NetWorker to pretend to balance
> the load by setting the Target sessions value to 1 for each device
> (in the Properties->Configuration tab). This assumes that you have
> multiple savesets writing at the same time.
Ideally, yes, I would like my client to write to both AFTDs at the same
time. In my case, it's a single client, with 2 AFTDs.
>
> EMC NetWorker discussion <NETWORKER AT LISTSERV.TEMPLE DOT EDU> wrote on
> 10/22/2009 10:55:47 AM:
>
>
> Thierry FAIDHERBE <thierry.faidherbe AT forem DOT be> wrote on 10/22/2009
> 09:54:39 AM:
>
>
> Yes and no : AFD are NOT like tape : When 1 is full, the Session
> is suspended until AFD space is recovered and does NOT continue
> to another dev even if it is labelled in same pool.
>
> So, best is to create 2 AFDs, in 2 separate pools. Do load balancing
> of your backups, some to AFD1's pool, the others to AFD2's pool.
>
> I have 6 AFDs devices defined as E:\AFD, F:\AFD, G:\AFD,
> H:\AFD, I:\AFD and J:\AFD each one labelled in its own pool and I do
> load balancing of my backups using groups. (define groups in AFD pool
> authorized group list)
>
> You've lost me. You have 1 server, with 6 AFTD devices attached. And you
>
>
>
> have 6 pools, one each for each AFTD device. And so you have .. what,
>
> the
>
> same client, defined 6 times, each with a different backup selection?
>
> And
>
> each of these 6 clients is in a separate group? And you run all 6 groups
>
>
>
> every night?
>
> I'm still confused, sorry. :-)
>
>
>
>
> Works like a charm. E and F are 2TB Luns I stage in parallel.
> Then stage as you need. Do not forget, 1 read (recover/stage/clone)
> operation a time per device :-)
>
> Cheers
>
> Th
>
> -----Original Message-----
> From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU]
>
> On
>
> Behalf Of MIchael Leone
> Sent: jeudi 22 octobre 2009 15:41
> To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
> Subject: [Networker] How to use multiple AFTD devices
>
> I have a question. I have a Windows NW 7.4.2 storage node that I use
>
> as
>
> an
>
> AFTD device. The disk space in question is presented from my SAN. So I
>
>
>
> define the device as "FQDN:drive letter\file path", and this all works
>
>
>
> wonderfully - I back up to disk, then clone to tape.
>
> Problem: I need enough space to total 2.5 TB in size, and my SAN only
> allows me to present at most a 2 TB disk (it's an HP EVA 8000). So
>
> what
>
> I
>
> was thinking - present 2 disks on 1.2TB each (the daily backup size is
>
>
>
> 1.1
>
> TB, so 2 drives would allow me to keep 2 days backup on disk).
>
> What kind of config do I need to tell NetWorker? Do I just define 2
> devices, and as long as they are both in the same media pool, things
>
> will
>
> Just Work? Will NetWorker treat it the same way it treats tapes -
>
> i.e.,
>
> will it fill up drive X: first, then start using drive Y:? Will it use
>
>
>
> parallelism, and write to X: and Y: at the same time? I'm guessing
>
> that
>
> I
>
> can define multiple AFTDs this way, right?
>
> Has anyone done this? Is there something I am not taking into account?
>
> Thanks
> --
> Michael Leone
> Network Administrator, ISM
> Philadelphia Housing Authority
> 2500 Jackson St
> Philadelphia, PA 19145
> Tel: 215-684-4180
> Cell: 215-252-0143
> <mailto:michael.leone AT pha.phila DOT gov>
>
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>
> --
> Frank Swasey | http://www.uvm.edu/~fcs
> Sr Systems Administrator | Always remember: You are UNIQUE,
> University of Vermont | just like everyone else.
> "I am not young enough to know everything." - Oscar Wilde (1854-1900)
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