You're welcome!.

And another thing I forgot to mention:

Use of TSM virtual volumes requires TSM Extended Edition to be entitled
to the server-to-server license.

 

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Mike
Sent: Wednesday, April 20, 2005 1:47 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: backup stgpool from one server to another?


On Wed, 20 Apr 2005, Prather, Wanda might have said:

> Yes, you can use one TSM server as an "electronic vault" for another
TSM server.
>
> Look in the Administrator's Guide under the topic "Using Virtual
Volumes to Store Data on Another Server".
>
> It may not be the best approach, however:
>
> *     The data is sent from the primary server to the secondary server
via TCP/IP.  How well it works for you will depend a lot on the
available throughput you have, and the amount of data involved.
>
> *     It may not work like you want:  Server-to-Server virtual volumes
create an "electronic vault", not a "standby server".  If your primary
server goes down (or burns up!), the data is safe on the "other" TSM
server, but cannot be restored directly from the other server.  You have
to recreate your pirmary TSM server image first.
>
> *     First let me say that I don't even know what "on demand" is, but
I'm not sure what you mean by "temporary stuff".  If you are talking
about backups, TSM doesn't really understand the notion of "temporary".
How will you get those backups to expire off the "other" server?
Archives are a better choice for something that is "temporary".
>
> *     "Virtual" volumes also have to be reclaimed, and that involves
transfer via TCP/IP again.
>
> *     Have you considered creating a second copy pool and just moving
the tapes of this "temporary" stuff to the other server's location?
It's usually faster and easier to manage than virtual volumes, if you
have a lot of data.
>
> *     I assume from your question that your TSM servers have separate
libraries.  I don't have enough information about your config to say for
sure, but if your library will support it, a better solution may be to
use a fibre connection to let your 2 TSM servers share one of the
libraries, and have your TSM "on demand" server write its copy pool into
the other machine's library.
>
> Hope that helps.
>
> Wanda Prather
> "* I/O, I/O, It's all about I/O *"  -(me)
>
>
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>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf
Of Mike
> Sent: Wednesday, April 20, 2005 11:25 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: backup stgpool from one server to another?
>
>
> We have two TSM servers with one that backs up all nodes
> on the network (Intel and AIX) and the other that backs
> up data specifically written to an OnDemand server (historical,
> legal stuff that is kept for 6+ years).
>
> Is it possible to cause the temporary stuff, the files
> sent to OnDemand today that are not yet off-site in
> 6 year storage, to the other general purpose TSM so the
> files do get preserved and off site in some way in case
> something drastic happens?
>
> Does this make sense?
>
> I'm not trying to change OnDemand, but rather temporarily
> send files from one TSM to the other.
>
> Mike
>

Thank you very much. Just what I was looking for.

Mike