The Data Vault service is a system that joins up two sets of storage: fast, expensive, high quality active research storage, and slow, cheap, archival-quality long term storage. The Data Vault service will manage the transfer of data from one to the other, and back again if the data needs to be retrieved.
Tom Higgins at Manchester University Library has been considering two aspects of the storage requirements for the Data Vault. These have been compiled in openly editable documents. If you have views on these, please join in the conversation by commenting on the documents!