Dell DX6012S Setup And Configuration Manual - Page 8

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Dell DX6012S Setup And Configuration Manual
Chapter 3. DX Content Router Services

3.1. Basic Architecture

A DX Content Router lives within a DX Storage cluster but is always visible to other clusters, and
perhaps to the external network at large. Consequently, it is assumed that all communication
between DX Content Router services occurs over a secure TCP connection.
The following diagram illustrates, at a high level, the flow of messages that takes place between
two DX Storage clusters, one acting as the Primary Cluster and the other as a Disaster Recovery
Cluster. Dotted lines represent local cluster communication. Solid lines represent TCP traffic over
the HTTP protocol between DX Content Router services and also between storage nodes within the
two independent clusters.
Alternatively, if network configuration prevents direct communication between the storage nodes
(such as when DX Content Router installed on a CSN), communications can be configured to route
through an SCSP Proxy:
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Version 2.2
December 2010