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High Availability PI A Better Way to Manage a PI System ... - OSIsoft

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<strong>PI</strong> Replication Architecture<br />

Secondary<br />

Secondary<br />

<strong>PI</strong><br />

<strong>PI</strong><br />

Server<br />

Server<br />

<strong>PI</strong> Server Collective<br />

Data Buffering<br />

Services<br />

<strong>PI</strong> Interfaces<br />

<strong>System</strong><br />

<strong>Manage</strong>ment<br />

Tools<br />

Configuration<br />

Changes<br />

Failover Mechanism<br />

Thin Clients: RtPortal, RtWebParts,<br />

Rich Clients: ProcessBook, DataLink, Cus<strong>to</strong>m<br />

Application…<br />

<strong>PI</strong>­SDK<br />

Primary<br />

Primary<br />

<strong>PI</strong><br />

<strong>PI</strong><br />

Server<br />

Server<br />

Identical<br />

Time­Series<br />

Data Buffering<br />

Services<br />

<strong>PI</strong> Interfaces<br />

Secondary<br />

<strong>PI</strong> Server(s)<br />

9

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