90 IBM Content Manager OnDemand Guide
5.1  Content Manager OnDemand cache storage
Content Manager OnDemand has a built-in cache storage management that is used to store 
documents on locally mounted disk subsystems. These subsystems can be network-attached 
storage (NAS), storage area networks (SAN), or any type of locally addressable disk that is 
available to the supported operating system. The cache storage manager uses a list of 
directories or file systems that are available to determine where space is available for storing 
and maintaining documents. 
Each Content Manager OnDemand object server in the system has a defined set of cache 
storage devices on which you can maintain the report data for a period to provide the fastest 
access times for system users. 
Certain implementations of Content Manager OnDemand use an all cache system to 
maintain data for its full retention. Other implementations store to both cache and archive 
storage. Other implementations store only to the archive. 
Y ou can configure Content Manager OnDemand so that at load time one of the following 
methods of data storage occurs:
/SM590000Data is stored in cache and later is automatically migrated from the cache subsystem to 
an archive system. 
/SM590000Data is stored to both local cache and archive storage.
/SM590000Data is stored directly to archive storage.
These options are described in the following sections.
5.2  IBM Tivoli Storage Manager for Multiplatforms
Content Manager OnDemand for Multiplatforms integrates with Tivoli Storage Manager and a 
license for this usage is included with Content Manager OnDemand. Within Tivoli Storage 
Manager, documents can be archived on various media, such as disk, optical, tape, and 
content-addressable storage (CAS) devices. These archive storage devices must be defined 
to the Tivoli Storage Manager system. Content Manager OnDemand uses the archive 
application programming interface (API) that is provided by Tivoli Storage Manager to store 
and retrieve documents.
To store application group data to the Tivoli Storage Manager ASM, the application group 
must be configured within Content Manager OnDemand to a defined storage set. This 
storage set contains a storage node that is defined within Tivoli Storage Manager and points 
to a specific storage area or media. 
With the application group definition, you can specify whether and when the data is migrated 
to archive storage. For example, you can specify that the data will be migrated to archive 
storage when the document is originally loaded into the system, or that the data migration 
occurs the next time that the migration maintenance process is run, or that the data migration 
occurs after a certain number of days pass from the date that the data was loaded; or never.