| 摘要 |
In a video server, multimedia data for a production is archived with data blocks for a video disk file and data blocks for audio disk files and data blocks for auxiliary disk files all intermixed together in a single tape file, in approximately the same order required for producing a multimedia data stream. During restoring of the production, as the disk files are being copied to disk storage systems from the tape file, the data may be retrieved from the same disk files and played as a multimedia data stream as soon as enough information is available in the files to form the stream. Disk files are striped across a multitude of disk files systems, by a commutator and a multitude of input/output units share access to all the files in all the disk file systems, for example, using a periodically switching round robin scheme or more complex scheduling. Also, during restoration, the same input/output unit of the server that is copying the data from the tape file to the disk drive may be is used to play a multimedia data stream for the production and simultaneously other input/output units of the server are able to play multimedia data streams for the same production from those portions of the disk files for the production that have already been restored.
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