Folks - here's info about a new redpaper available from ibm.com/redbooks.
This gives you an introduction to the basic concepts of TSM and associated
products.
You might also be interested to know that updated versions of
SG24-5416: Getting Started with Tivoli Storage Manager: Implementation
Guide (one of the most popular redbooks ever in its first edition)
and
SG24-4877: Tivoli Storage Management Concepts
are also available.
As well as a redpiece SG24-5472 (draft redbook) Tivoli Storage Management
and Domino

Regards, Charlotte
Email: lotti AT us.ibm DOT com
Ph (408) 927-3641 Fax (408) 927-3616 T/L 8-457-3641
Project Leader, Storage Management, ITSO Almaden
http://ibm.com/redbooks

Just published - ITSO Redpaper:
Tivoli Storage Manager, A Technical Introduction, REDP0044

Tivoli Storage Manager is the core product of the Tivoli Storage Management
 product set. It provides a solution for distributed data and storage
management in
 an enterprise network environment. Tivoli Storage Manager supports a wide
 variety of platforms for mobile, small and large systems, and delivers
together
 with complementary products, many data management functions, such as data
 protection for file and application data, record retention, space
management, and
 disaster recovery.

 This paper gives a high-level technical introduction to Tivoli Storage
Manager. It
 positions Tivoli Storage Manager within the Tivoli Storage Management
solution,
 provides an overview of its architecture, the base concepts, the
interfaces, and
 supported environments, and shows Tivoli Storage Manager's interaction
with
 other products of the Tivoli Storage Management product set.

This paper covers:

1. The Tivoli Storage Management solution
2. Tivoli Storage Manager
3. Tivoli Storage Manager complementary products
4. TDP for Applications and hardware integration
5. Tivoli Data Protection for Workgroups
Author: Roland Leins, ITSO San Jose
Check it out or download it from:
http://www.redbooks.ibm.com/redpapers/abstracts/redp0044.html