This page provides an overview of DuraCloud and answers common questions about the service. You can also review full documentation for DuraCloud or learn more about subscriptions from DuraCloud by DuraSpaceLYRASIS or DuraCloud Europe from 4Science. You can download a flyer about our services (PDF).
...
DuraCloud is an open source, hosted service that makes it easy to control where and how your organization preserves content in the cloud. DuraCloud enables your institution to store content with expert cloud storage providers while adding lightweight features that enable digital preservation, data access, and data sharing. The service is available from DuraSpace LYRASIS or from 4Science via DuraCloud Europe.
...
For content deposited in Chronopolis via DuraCloud from DuraSpaceLYRASIS, an authorized user can retrieve a list of all files and checksums in both md5 and sha256 format.
...
For content deposited in Chronopolis via DuraCloud from DuraSpaceLYRASIS, each node in the Chronopolis network performs regularly scheduled integrity checks of all content. In the event that a file fails this test, the auditing system flags the file for review. Reviews are performed manually by Chronopolis staff in order to ascertain the cause of the audit failure. Once the cause is determined, a repair request is made to another node, which transmits a valid copy of the file for replacement at the requesting node.
Video and Audio Streaming
DuraCloud from DuraSpaceLYRASIS hosted service spaces can be configured to enable streaming of the content stored in the space. When enabled, files can be streamed using the HLS streaming format. RTMP format is also available. Streaming can be used in either open or secure modes. Secure streaming requires an authenticated request to DuraCloud to retrieve a signed URL before the stream can be delivered. More details about media streaming in DuraCloud can be found here.
...
1. Uninstall the SyncTool
2. Delete the work directory, called "duracloud-sync-work" in your home directory (i.e. such as C:/Users/<username>/duracloud-sync-work on Windows or /home/<username>/duracloud-sync-work on Mac/Linux)
3. Download the latest version of the SyncTool: https://wiki.duraspaceLYRASIS.org/display/DURACLOUD/DuraCloud+Downloads
4. Reinstall and restart your computer
...
DuraCloud uses the leading cloud infrastructure vendor, Amazon Web Services (AWS), for managing systems and storage. AWS has deep compliance credentials and state-of-the-art security practices. DuraCloud leverages the capabilities of AWS to deploy load balanced and auto-scaled infrastructure components which are spread across data centers to reduce localized risk exposure. Amazon S3 storage boasts 99.999999999% durability and 99.99% availability of objects over a given year.
DuraCloud is an open source technology from DuraSpaceLYRASIS, a respected institution in the open source repository community and the home institution of the DSpace, Fedora, and VIVO communities.
...