Tivoli Storage Manager for AIX: Managed System for SAN Storage Agent User's Guide
|Data migration of ACSLS to EXTERNAL is recommended. 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 8 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.
|Figure 8. Legacy ACSLS Data Migration
|Two methods to migrate data are:
|
- |Use the Tivoli Storage Manager server MOVE DATA command. This
|method allows the legacy ACSLS data to move to a new storage pool without
|moving any expired files in the aggregates. For more information, see
|the Managing Storage Pools and Volumes section of the Administrator's
|Guide.
- |Use the Tivoli Storage Manager server storage pool reclamation
|function. This method works by reclaiming the active files from the
|legacy ACSLS storage pools. Reclamation processing, however, is very
|resource intensive and should be performed during periods of low resource
|utilization. For more information, see Reclaiming Space in Sequential
|Access Storage Pools section of the Administrator's
|Guide.
|
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