SAN

VT Storage Networks
The Apella core networking architecture is designed to scale from a single server with local media storage to multiple ingest and playout servers with central NAS/SAN storage while supporting remote high resolution and low resolution editor and browser clients. This design provides the ability for any Apella playout server or other NewsFlow client to become completely autonomous in the advent of a critical failure of the central database or central media storage. In case of a network failure, all assets scheduled for broadcast are cached on the local playout machines and therefore will still be available for playout.

Shared Area Networks
Storage Area Networks (SAN) is a dedicated network that connects storage devices with servers. SANs are typically back end storage networks that are separate from LANs. SANs can be geographically distributed up to 6 miles and operate at gigabit speeds. SANs provide a block level interface while NAS servers provide a file-level interface. SANs are good for large infrastructures with many high-bandwidth video servers and nonlinear editors. SANs are appropriate for data transfer intensive applications and for storing large amounts of data.

VT SAN-3000
The Video Technics’ SAN Fibre-Channel architecture supports up to 200 concurrent high-resolution SD streams and 22 HD streams, which can be shared between any combination of ingest/playout server channels or NLEs. However, additional SAN appliances can be added making the Apella almost infinitely scalable.

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View NewsFlow SAN Schematic (click thumbnail for larger view)