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About Omneon MediaGrid - Harmonic Inc

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System Installation with ContentServer 1000 and 2000 Series<br />

<strong>About</strong> File System Replication Factors<br />

For <strong>MediaGrid</strong> systems with the ContentServer 1000 and 2000 series, <strong>Harmonic</strong> recommends that<br />

you set the replication factor for your system at the default of 3 or, at minimum 2. Setting the<br />

replication factor to 1 means that no replication of the data in your file system will take place, and is<br />

not recommended. If the replication factor for your system is set to 1, in the case of system or disk<br />

failure (even one disk), your data will not be recoverable. For instructions on setting the replication<br />

factor, refer to Setting Replication Factors for File Systems in the <strong>Omneon</strong> SystemManager User Guide.<br />

<strong>About</strong> Site Preparation<br />

Note the following prerequisites for installation of your <strong>Omneon</strong> <strong>MediaGrid</strong> System.<br />

Preparing the Site<br />

Note the following prerequisites for installation of a <strong>Omneon</strong> <strong>MediaGrid</strong> storage system:<br />

• Environmental<br />

<strong>Omneon</strong> equipment is designed to operate in a clean, air-conditioned control room environment.<br />

Care must be taken to avoid temperature and humidity extremes.<br />

• Power<br />

When connecting equipment, care must be taken to avoid power lines that are subject to noise and<br />

voltage spikes. Do not install units on a power circuit that is common to such equipment as air<br />

conditioners and refrigeration units. For optimum protection, AC noise filters and surge<br />

protectors are recommended if unstable power conditions are present.<br />

• Site<br />

A full <strong>Omneon</strong> <strong>MediaGrid</strong> enclosure weighs approximately 1000 pounds (plus the weight of the<br />

enclosure rack). This weight is calculated as three ContentDirectors, two 1GbE switches, one<br />

10GbE switch, one SystemManager and 30 ContentServers.<br />

<strong>Omneon</strong> <strong>MediaGrid</strong> equipment is designed for rack mounting. Refer to Rack Mounting an<br />

<strong>MediaGrid</strong> System with the ContentServer 1000 or 2000 Series for recommendations on how<br />

to mount the <strong>Omneon</strong> <strong>MediaGrid</strong> components.<br />

60 Installation and Configuration Guide

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