You will need multiple control paths to the library only if you want to
partition it. Each TSM server will see its partition as standalone library
with number of drives and slots as assigned to that partition. Detailed
description is available in 3584 Planning and Operator Guide, Chapter 4
"Advanced Operating Procedures, Configuring the Library with Partitions".
The other approach is to use TSM library sharing as Don suggested. This
will need some TSM configuration but will allow you to have single scratch
pool for both servers instead of separate set of scratches in each logical
library (partition).
All roads go to Rome (but there are many of them).

Zlatko Krastev
IT Consultant




Please respond to "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
Sent by:        "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To:     ADSM-L AT VM.MARIST DOT EDU
cc:

Subject:        Re: Multiple logical libraries for 3584

Don,
I have 2 TSM servers accessing a single 3584 library and I would like to
set
up multiple control paths to the library so that both servers can access
it
equally.  Have you or anyone else done this successfully and do you have
any
information on setting it up?
Thanks,
Gentille

-----Original Message-----
From: Mark D. Rodriguez [mailto:mark AT MDRCONSULT DOT COM]
Sent: Tuesday, August 13, 2002 4:19 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Multiple logical libraries for 3584


Don France wrote:

>Yep (to the last question);  you cannot span multiple physical libraries
to
>make a single logical.  You can define multiple logicals within a single
>physical;  that is a common thing I've done, for various reasons.
>
>
>Don France
>Technical Architect -- Tivoli Certified Consultant
>Tivoli Storage Manager, WinNT/2K, AIX/Unix, OS/390
>San Jose, Ca
>(408) 257-3037
>mailto:don_france AT att DOT net
>
>Professional Association of Contract Employees
>(P.A.C.E. -- www.pacepros.com)
>
>
>
>-----Original Message-----
>From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
>Dan Foster
>Sent: Tuesday, August 13, 2002 2:14 PM
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: Multiple logical libraries for 3584
>
>
>I've got a question.
>
>One 3584-L32 with 6 drives and one 3584-D32 with 6 drives.
>
>Is it possible to have a logical library that covers 4 drives in
>the L32, and a second logical library that covers last 2 drives
>in the L32 and all 6 drives in the D32?
>
>Or is that not a valid configuration -- ie, do I need to keep
>logical libraries from spanning multiple drives in multiple 3584
>units?
>
>-Dan
>
>
Hi Dan,

Judging by your configuration I beleive that you have just one physical
library.  I beleive the L32 is the base unit and the D32 is an expansion
cabinet, i.e. the 2 of them are physicaly attached to one another and
share the same robotics.  Is this correct?  If so then yes you can
partition the library as you described.

But the real question is whatare you trying to accomplish?  If this is
to be connected to 2 different servers there are a few more things that
have to be in place.  If both of these logical libraries are to be used
by the same TSM server I am not sure I understand the rational for doing
so.  You could just as easily manage the drive utilization through other
TSM server options.  Please explain a little bit more what you are
trying to accomplish.

--
Regards,
Mark D. Rodriguez
President MDR Consulting, Inc.

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