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Featured Research Note
Implementing 3 Node Disaster Recovery
Originating Author:
David Floyer
Disaster recovery in most organizations is based on a two-node topology, with one production site and a remote (>200 miles) backup disaster recovery location. In the event of a disaster, this approach will always result in some permanent data loss. This is true even if remote replication is used, as synchronous remote replication is not possible over long distances. For many organizations, the business risk associated with this reality is becoming unacceptable, and reducing the probability of permanent data loss is a business imperative. Modern three node disaster recovery topologies offer a potential solution. read more
3 node DR Analysis Milestones
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node { borderstyle: solid; linkbase: http://www.wikibon.org/index.php?title=; } edge { style: solid; arrow-style: open; } [3 node\nDR\nanalysis] {fontsize: 125%; bordercolor: black; fill: white; flow: south; link: Implementing_3_node_disaster_recovery\#Analyze_phase; } -->{borderwidth: 4px;align: center; color: black;arrowstyle: open; fill: blue } [Sponsor\nidentified\n& data\ncollected] {bordercolor: blue; fill: white; flow: east;} ~> {align: center; color: blue; arrowstyle: filled; fill: blue;} [Optimum\nlocation\nof 3 nodes\ndecided] {bordercolor: blue; fill: white; flow: east;} ~> {align: center; color: blue; arrowstyle: filled; fill: blue;} [Business\ncase\nconstructed] {bordercolor: blue; fill: white; flow: east;} ~> {align: center; color: blue; arrowstyle: filled; fill: blue;} [Business\ncase agreed\n& budget\nallocated] {bordercolor: blue; fill: white;} </graph>
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