Appendix B. Legacy ACSLS Data Migration and Coexistence

Note: For the latest information concerning migration and coexistence, see the

Tivoli Storage Manager README.
If your environment consists of Tivoli Storage Manager storage pools associated
with an ACSLS library type and an ECARTRIDGE device type, the library can be
updated with the SHARED=YES option to enable LAN-free data movement.
If your environment consists of Tivoli Storage Manager storage pools associated
with an ACSLS library type and a GENERICTAPE device type, data migration is
required rather than coexistence because Tivoli Storage Manager ACSLS shared
library support cannot co-exist with external library support. See the ″Configuring
Storage Devices″ chapter in the Administrator’s Guide for detailed information on
how to migrate from an external library environment to a shared ACSLS library
environment.
Data Migration
Data migration of ACSLS to external library support is necessary only when Tivoli
Storage Manager ACSLS shared library support is not possible in your
configuration. The only situation where ACSLS shared library support is not
possible is when your environment does not contain a Tivoli Storage Manager
server installed on AIX, Solaris, or Windows to serve as the library manager.
Migrate the existing data from existing (old) storage pools to new storage pools
associated with the appropriate policy, device class, and library definitions.
Migration of data also allows the entire environment to be LAN-free, providing
better performance and better utilization of tape drives and media.
Figure 10 on page 52 displays the normal migration path from an old storage pool
containing the data associated with the ACSLS library type to a new storage pool
associated with an EXTERNAL library type and an ECARTRIDGE device class.
© Copyright IBM Corp. 2000, 2007 51