Specifications

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Cisco TV CDS 2.5 ISA Software Configuration Guide

OL-24788-01

Chapter 2 Network Design

Vault Virtualization

The DNS server typically runs on the BMS server. The Naming Service is part of the video backoffice

(VBO). All CORBA components, including the AMS, Stream Service, and Content Store, need to

communication device such as a satellite transmission or FTP server. After the package is received

completely by the catcher, it sends the package by way of FTP to the AMS. The package consists of video

and image content assets, as well as ADI metadata.

Following are the requirements for the SCS feature:

• Single, shared DNS server with all devices registering their hostnames to it. A central, shared DNS

is required to resolve multiple Naming Services belonging to the different VHOs.

• Hostnames must be unique for all devices. This is required for the Naming Service discovery.

• Each VHO has its own Naming Service to which the ISA components of the VHO register.

• AMS controls the ingest and deletion of content.

• The Vault array has one SCS.

• SCS registers with each Naming Service.

A VVI with SCS must be initialized in the following order:

1. The shared DNS server must be up and running before starting up the shared AMS, SCS, and VHO

devices.

2. SCS successfully registers with the Naming Service for each VBO.

3. Each VHO Stream Service registers with its respective Naming Service.

Ingesting Content with the Shared Content Store

Upon receiving the content package, the AMS schedules it for ingest by informing the Package Factory

in each participating VBO of the content package, and passing the pertinent information (the ADI

metadata, the URL where the content package can be accessed in the AMS, and the verb ingest).

The SCS creates one interoperable object reference (IOR) for each content package. The IOR is returned

to all VBO Package Factories that request it, including any that requested it at the time the IOR was being

created.

Deleting Content with the Shared Content Store

To delete content that was ingested for more than one VBO, the AMS is used to send the export package

delete request to each VBO. The content is deleted from the Vault array only when all VBOs have

requested the deletion. If one or more VBOs have not requested that the content be deleted, the content

remains in the Vault array.

Virtual Content Store

The Virtual Content Store feature in an ISA environment replaces the Shared Content Store feature

introduced in Release 2.1. The Shared Content Store (SCS) feature is the ability of several local sites

(video hub offices [VHOs]) to ingest content at a central location and share that content with the other

VHOs. The SCS feature eliminated ingesting multiple copies of the same content.

Release 2.2 and later releases offered Multi-Screen Video (MSV) support for ISA environments

configured with SCS. An MSV Asset Deletion script ran nightly by default. The script identified the

VOD assets that were removed by the backoffice and deleted them from the Vaults. If the asset was found

in any one of the VHOs, the asset was not deleted. Only when the asset was not found in all VHOs was

the asset deleted from the Vaults.