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In this space, we will be exploring the requirements related to supporting hierarchical storage and enabling the community in adding support to Fedora Commons components.
Characteristics of Hierarchical Storage
Also known as tiered storage, the driving rationale for using hierarchical storage is the notion that costs can be reduced by storing all or part of collection of files (bitstreams) on lower performing, less expensive storage technologies while keeping a copy of some part of the collection on a high performing, more expensive storage technology for immediate use. The hierarchical storage system implements some policy for determining on what tier files are stored to meet system goals. In real world implementations, many other requirements may need to be considered since hierarchical storage may be used to help with other system needs such as backup, replication, high availability and disaster recovery. However, it is cost that underlies any decision to deploy hierarchical storage.