Configuration and Tuning GPFS for Digital Media ... - IBM Redbooks

necessary for material contents classification (for storing in an archive), and
for fast finding the desired sequence(s), without the need for browsing the
entire material.
4. Storing the original material in a centralized archive (located in a room with
special environment - temperature, capacity, etc.).
5. Send a copy to the cutting process, where a draft content is created
6. Redactor needs to check results (draft content - step 5). If content is ok,
proceed with step 7, otherwise go back to step 5.
7. Storing the “metadata” of the new content and send it to play-out (“air” the
material).
8. After transmission the material in stored in the archive (as you can see, both
incoming material and the “aired” one are stored into the archive).
Streaming
Video
Tape
Tape
VTR Editing Suite VTR
Archive
Catalog
Tape
Tape Library
Figure 1-4 Traditional broadcaster workflow (simplified)
As you may have already observed, compared with normal IT operations, this
workflow could be done much more efficiently if the process can be optimized by
parallelizing the steps.
To make this happen, centralized storage is needed so that everyone has access
to the same material at any given time (see Figure 1-5 on page 12). This is
possible with the actual technologies, allowing broadcasters to improve the
workflow in several ways:
1. Broadcasters save time (and therefore money) as the time for the overall
process can be reduced dramatically by parallelizing tasks.
2 Metadata refers to a wealth of information associated with the essence
Play Out
Automation
Streaming
Video
Chapter 1. Introduction to digital media 11