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| Broadcasting's Most Comprehensive Online Buyers Guide |
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Omneon MediaGrid™ Delivers Affordable Enterprise-Level Active Storage for the Broadcast and Video In
LAS VEGAS -- April 22, 2006 -- Omneon Video Networks today announced the launch of the
MediaGrid active storage system, the first content storage system of its
kind, designed specifically for the demands of working with large digital
media files within broadcast and video production facilities. Combining
grid storage and grid computing through the use of multiple intelligent,
interconnected-yet-independent storage servers, the new system dramatically
enhances the efficiency of digital media access for users and applications
across the entire broadcast workflow. The MediaGrid system provides
centralized shared storage that is scalable in capacity, bandwidth, and
media processing power.
The unique modular design of MediaGrid utilizes industry-standard
components and connectivity to create a highly configurable, reliable, and
cost-effective system. Components of the system communicate over standard
Ethernet and generate massive aggregate bandwidth that is available to
external clients of the system, eliminating bottlenecks associated with
traditional shared-storage environments. Each storage component is also a
media processing engine, making computational resources available to
applications for media processing functions while content resides within
the storage system.
"MediaGrid is an incredibly elegant solution that takes many individual
off-the-shelf industry standard components and makes them work together in
a more intelligent manner, ultimately creating a system that is more
affordable, more powerful, and easier to use than other storage systems,"
said Geoff Stedman, vice president of marketing for Omneon. "No longer is
storage just a passive repository of data -- we've made MediaGrid an active
part of the workflow by utilizing the integrated processing power of each
component to perform media processing functions on stored content."
Omneon MediaGrid enables television broadcasters and content providers to
easily implement an all-digital, disk-based workflow and connect many
disparate systems into a single shared-storage environment. The key to
MediaGrid is its unique modular design that utilized industry-standard
components and connectivity to create a highly configurable and reliable
system.
Intelligent Components
The main components of a MediaGrid system are ContentDirectors and
ContentServers. ContentDirectors act as the overall file system
controllers, managing the distribution of data throughout the system and
providing data maps to clients for retrieval of media from the system.
ContentServers are the engines that actually store and provide access to
media. ContentServers, available in 2-TB "high-bandwidth" and 12-TB
"high-capacity" configurations, are individual storage servers that provide
a combination of storage capacity, high-bandwidth network access, and
processing power. ContentServers act as smart nodes on an interconnected
grid that require no assistance from the ContentDirectors to communicate
with clients or one another. ContentServers are interconnected via
redundant Gigabit Ethernet connectivity, and additional ContentServers can
be added easily to the system at any time. This simple structure makes
MediaGrid highly scalable, reliable, and manageable. Storage capacities can
start as small as a few terabytes and scale to more than a petabyte.
Bandwidth starts at multiple gigabits per second and increases to many
times that amount as additional ContentServers are added.
Handling the Content
The MediaGrid architecture is based on a distributed file system designed
to address the particular needs of managing large media files. MediaGrid
uses a file segmentation scheme that employs file slices as the unit of
storage, instead of the traditional blocks used by conventional data
storage systems. Every file is divided into slices, which are then stored
in multiple locations across the pool of ContentServers. Redundant
ContentDirectors manage the distribution of slices and maintain the
database of slice locations. A slice on the MediaGrid -- which has a
nominal size of 8 MB -- is stored and retrieved from the storage pool in an
intelligent fashion, which ensures both integrity and performance of the
system. Multiple replicas of each slice are created in the process and
redistributed to other drives on other ContentServers based on an
adjustable replication factor. This allows MediaGrid to provide greater
resiliency and bandwidth for critical or high-demand content than for
less-used, aged content.
In the event of failure of any drive or ContentServer, all slices of all
files still reside in the system and can be accessed without interruption,
even as the system automatically begins to make new copies of the slices.
Lengthy RAID rebuilds are never necessary, and when a failed drive is
replaced, there is never a need to initiate a volume rebuild.
Application Support
In a separate press release ("Omneon MediaGrid Embraced by Leading
Broadcast Application Developers") Omneon announced broad support for
MediaGrid by application developers who are enthusiastically endorsing this
new system. The Omneon MediaGrid was designed for easy integration with
workflow and content management systems through open file protocols and
APIs. Additionally, since the MediaGrid allows applications to manage and
process media files while the files remain in place on the MediaGrid, these
applications become more active in the workflow, functioning in parallel
with other activity, in contrast to the digital islands they once were.
Contact Harmonic
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