IBM Tivoli Storage Manager (TSM) is a centralized, comprehensive backup and recovery solution that employs smart data move and smart data store technology, which makes backups and restores fast and flexible. The IBM Tivoli suite of storage products supports more than a dozen operating system platforms, a variety of network connectors, and more than 500 offline storage devices.

For more information, refer to :
http://www-3.ibm.com/software/tivoli/solutions/storage/backup/
In this section, we describe the basic TSM installation process on SLES 8. For more information, refer to the IBM Redbook IBM Tivoli Storage Manager Implementation Guide, SG24-5416.
You can download a 60-day free trial copy of IBM Tivoli Storage Resource Manager from:
http://www.ibm.com/software/tivoli/resource-center/storage/code-srm.jsp