Archiving of Presentations

A benefit of having your lecture recorded by CARMA is long-term accessibility at no cost above the cost of recording. New recordings join several thousand lectures in the U-M ATLAS Lecture Archive Database, where access is guaranteed through 2013.

We have implemented a secure, redundant data-storage solution, with the primary focus being preservation of the data. We have installed identical servers in two different geographic locations, each with 10 TB of storage. The storage is configured such that any two disks can fail at once and no data will be lost.

All data is mirrored nightly between the two servers. This means that, if a catastrophic failure or natural disaster stops one server, the other server has a complete copy of the data and is able to take over.

Every lecture is stored as a collection of high-resolution images, video files and XML metadata files in a standard Lecture Object format in our archive. This archive is protected from unauthorized access. Our software transforms this Lecture Object into multiple, compressed viewing formats, which are distributed by our web servers.

By default, the full-resolution video files and the images of the visuals are transferred to Deep Blue. Deep Blue is the University of Michigan's permanent, safe, and accessible service for representing our rich intellectual community. (Note: you may request that your recordings be excluded from this archive.)

When recording, we also capture the video of the presenter and the visuals to magnetic tapes. These tapes are your property, and we can deliver them to you or keep them in our storage facility at the Hatcher Library. These tapes contain the data in its highest-quality form, and can be used for creating derivative works or new formats in the future.