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?

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
--
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