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Chronopolis Network Deposit Option
Chronopolis Deposit Process
Content is uploaded into the DuraCloud system via the DuraCloud SyncTool and is initially stored in Amazon Web Services S3 storage. This allows for initial checksums to be performed and for the client to stage and organize content prior to ingest into the Chronopolis system. An authorized administrative user initiates the ingest process, called the “snapshot.” clients are asked to move content from DuraCloud into the Chronopolis System within 3 months of upload or to pay the prorated cost $700/TB/year for the additional time client Content is stored in Amazon S3.
After the client initiates the Content and Data ingest process (i.e. the “snapshot”), client’s data will be stored in a digital preservation system of geographically distributed nodes, each managed using vendor supported software and hardware.The architecture of this system allows for the failure of an entire Chronopolis node with data still available and reliable at the other nodes.
Chronopolis Data Validation
All data in the system will be monitored for fixity using the Auditing Control Environment software (ACE). ACE is a system that incorporates a new methodology to address the integrity of long term archives using rigorous cryptographic techniques. ACE continuously audits the contents of the various objects according to the policy set by the archive, and provides mechanisms for an independent third-party auditor to certify the integrity of any object. ACE software is developed at University of Maryland’s Institute for Advanced Computing Studies, a Chronopolis partner.
Clients may also request information regarding integrity checks of the deposited data.
Preservation Actions and Chronopolis
Please note that Chronopolis does NOT perform specific “preservation actions” upon files during or after ingest. This includes actions such as file format migration, file normalization, file type verification, creation of descriptive metadata and rights management. If a client wishes to have these services, they need to be done by the client before client Content is deposited into Chronopolis.
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